Search criteria
84 vulnerabilities found for contiki-ng by contiki-ng
CVE-2024-47181 (GCVE-0-2024-47181)
Vulnerability from nvd – Published: 2024-11-27 18:20 – Updated: 2024-11-27 19:20
VLAI?
Title
Unaligned memory access in RPL option processing in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for IoT devices. An unaligned memory access can be triggered in the two RPL implementations of the Contiki-NG operating system. The problem can occur when either one of these RPL implementations is enabled and connected to an RPL instance. If an IPv6 packet containing an odd number of padded bytes before the RPL option, it can cause the rpl_ext_header_hbh_update function to read a 16-bit integer from an odd address. The impact of this unaligned read is architecture-dependent, but can potentially cause the system to crash. The problem has not been patched as of release 4.9, but will be included in the next release. One can apply the changes in Contiki-NG pull request #2962 to patch the system or wait for the next release.
Severity ?
7.5 (High)
CWE
- CWE-704 - Incorrect Type Conversion or Cast
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2024-41126 (GCVE-0-2024-41126)
Vulnerability from nvd – Published: 2024-11-27 18:20 – Updated: 2024-11-27 19:22
VLAI?
Title
Out-of-bounds read when decoding SNMP messages in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-message.c module, where the snmp_message_decode function fails to check the boundary of the message buffer when reading a byte from it immediately after decoding an object identifier (OID). The problem has been patched in Contiki-NG pull request 2937. It will be included in the next release of Contiki-NG. Users are advised to either apply the patch manually or to wait for the next release. A workaround is to disable the SNMP module in the Contiki-NG build configuration.
Severity ?
8.4 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2024-41125 (GCVE-0-2024-41125)
Vulnerability from nvd – Published: 2024-11-27 18:20 – Updated: 2024-11-27 19:22
VLAI?
Title
Out-of-bounds read in SNMP when decoding a string in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-ber.c module, where the function snmp_ber_decode_string_len_buffer decodes the string length from a received SNMP packet. In one place, one byte is read from the buffer, without checking that the buffer has another byte available, leading to a possible out-of-bounds read. The problem has been patched in Contiki-NG pull request #2936. It will be included in the next release of Contiki-NG. Users are advised to apply the patch manually or to wait for the next release. A workaround is to disable the SNMP module in the Contiki-NG build configuration.
Severity ?
8.4 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2023-29001 (GCVE-0-2023-29001)
Vulnerability from nvd – Published: 2024-11-27 18:20 – Updated: 2024-11-27 19:22
VLAI?
Title
Uncontrolled recursion due to insufficient validation of the IPv6 source routing header in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for IoT devices. The Contiki-NG operating system processes source routing headers (SRH) in its two alternative RPL protocol implementations. The IPv6 implementation uses the results of this processing to determine whether an incoming packet should be forwarded to another host. Because of missing validation of the resulting next-hop address, an uncontrolled recursion may occur in the tcpip_ipv6_output function in the os/net/ipv6/tcpip.c module when receiving a packet with a next-hop address that is a local address. Attackers that have the possibility to send IPv6 packets to the Contiki-NG host can therefore trigger deeply nested recursive calls, which can cause a stack overflow. The vulnerability has not been patched in the current release of Contiki-NG, but is expected to be patched in the next release. The problem can be fixed by applying the patch in Contiki-NG pull request #2264. Users are advised to either apply the patch manually or to wait for the next release. There are no known workarounds for this vulnerability.
Severity ?
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2023-50927 (GCVE-0-2023-50927)
Vulnerability from nvd – Published: 2024-02-14 19:22 – Updated: 2025-04-24 15:15
VLAI?
Title
Insufficient boundary checks for DIO and DAO messages in RPL-Lite in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An attacker can trigger out-of-bounds reads in the RPL-Lite implementation of the RPL protocol in the Contiki-NG operating system. This vulnerability is caused by insufficient control of the lengths for DIO and DAO messages, in particular when they contain RPL sub-option headers. The problem has been patched in Contiki-NG 4.9. Users are advised to upgrade. Users unable to upgrade should manually apply the code changes in PR #2484.
Severity ?
8.6 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
< 4.9
|
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CVE-2023-50926 (GCVE-0-2023-50926)
Vulnerability from nvd – Published: 2024-02-14 19:28 – Updated: 2024-08-02 22:23
VLAI?
Title
Unvalidated DIO prefix info length in RPL-Lite in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds read can be caused by an incoming DIO message when using the RPL-Lite implementation in the Contiki-NG operating system. More specifically, the prefix information of the DIO message contains a field that specifies the length of an IPv6 address prefix. The value of this field is not validated, which means that an attacker can set a value that is longer than the maximum prefix length. Subsequently, a memcmp function call that compares different prefixes can be called with a length argument that surpasses the boundary of the array allocated for the prefix, causing an out-of-bounds read. The problem has been patched in the "develop" branch of Contiki-NG, and is expected to be included in the next release. Users are advised to update as soon as they are able to or to manually apply the changes in Contiki-NG pull request #2721.
Severity ?
7.5 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2023-48229 (GCVE-0-2023-48229)
Vulnerability from nvd – Published: 2024-02-14 18:30 – Updated: 2024-08-02 21:23
VLAI?
Title
Out-of-bounds write in the radio driver for Contiki-NG nRF platforms
Summary
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds write exists in the driver for IEEE 802.15.4 radios on nRF platforms in the Contiki-NG operating system. The problem is triggered when parsing radio frames in the `read_frame` function in the `arch/cpu/nrf/net/nrf-ieee-driver-arch.c` module. More specifically, the `read_frame` function performs an incomplete validation of the payload length of the packet, which is a value that can be set by an external party that sends radio packets to a Contiki-NG system. Although the value is validated to be in the range of the MTU length, it is not validated to fit into the given buffer into which the packet will be copied. The problem has been patched in the "develop" branch of Contiki-NG and is expected to be included in subsequent releases. Users are advised to update their develop branch or to update to a subsequent release when available. Users unable to upgrade should consider manually applying the changes in PR #2741.
Severity ?
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2020-27634 (GCVE-0-2020-27634)
Vulnerability from nvd – Published: 2023-10-10 00:00 – Updated: 2024-09-19 15:04
VLAI?
Summary
In Contiki 4.5, TCP ISNs are improperly random.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2023-37459 (GCVE-0-2023-37459)
Vulnerability from nvd – Published: 2023-09-15 19:19 – Updated: 2024-09-25 18:04
VLAI?
Title
Out-of-bounds read when processing a received IPv6 packet
Summary
Contiki-NG is an operating system for internet-of-things devices. In versions 4.9 and prior, when a packet is received, the Contiki-NG network stack attempts to start the periodic TCP timer if it is a TCP packet with the SYN flag set. But the implementation does not first verify that a full TCP header has been received. Specifically, the implementation attempts to access the flags field from the TCP buffer in the following conditional expression in the `check_for_tcp_syn` function. For this reason, an attacker can inject a truncated TCP packet, which will lead to an out-of-bound read from the packet buffer. As of time of publication, a patched version is not available. As a workaround, one can apply the changes in Contiki-NG pull request #2510 to patch the system.
Severity ?
5.3 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2023-37281 (GCVE-0-2023-37281)
Vulnerability from nvd – Published: 2023-09-15 19:17 – Updated: 2024-09-25 18:05
VLAI?
Title
Out-of-bounds read during IPHC address decompression
Summary
Contiki-NG is an operating system for internet-of-things devices. In versions 4.9 and prior, when processing the various IPv6 header fields during IPHC header decompression, Contiki-NG confirms the received packet buffer contains enough data as needed for that field. But no similar check is done before decompressing the IPv6 address. Therefore, up to 16 bytes can be read out of bounds on the line with the statement `memcpy(&ipaddr->u8[16 - postcount], iphc_ptr, postcount);`. The value of `postcount` depends on the address compression used in the received packet and can be controlled by the attacker. As a result, an attacker can inject a packet that causes an out-of-bound read. As of time of publication, a patched version is not available. As a workaround, one can apply the changes in Contiki-NG pull request #2509 to patch the system.
Severity ?
5.3 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2023-34101 (GCVE-0-2023-34101)
Vulnerability from nvd – Published: 2023-06-14 14:50 – Updated: 2024-12-30 15:37
VLAI?
Title
Contiki-NG vulnerable to out-of-bounds read when processing ICMP DAO input
Summary
Contiki-NG is an operating system for internet of things devices. In version 4.8 and prior, when processing ICMP DAO packets in the `dao_input_storing` function, the Contiki-NG OS does not verify that the packet buffer is big enough to contain the bytes it needs before accessing them. Up to 16 bytes can be read out of bounds in the `dao_input_storing` function. An attacker can truncate an ICMP packet so that it does not contain enough data, leading to an out-of-bounds read on these lines. The problem has been patched in the "develop" branch of Contiki-NG, and is expected to be included in release 4.9. As a workaround, one can apply the changes in Contiki-NG pull request #2435 to patch the system.
Severity ?
7.3 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.8
|
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CVE-2023-34100 (GCVE-0-2023-34100)
Vulnerability from nvd – Published: 2023-06-09 17:30 – Updated: 2025-01-06 18:09
VLAI?
Title
Out-of-Bounds Read in contiki-ng
Summary
Contiki-NG is an open-source, cross-platform operating system for IoT devices. When reading the TCP MSS option value from an incoming packet, the Contiki-NG OS does not verify that certain buffer indices to read from are within the bounds of the IPv6 packet buffer, uip_buf. In particular, there is a 2-byte buffer read in the module os/net/ipv6/uip6.c. The buffer is indexed using 'UIP_IPTCPH_LEN + 2 + c' and 'UIP_IPTCPH_LEN + 3 + c', but the uip_buf buffer may not have enough data, resulting in a 2-byte read out of bounds. The problem has been patched in the "develop" branch of Contiki-NG, and is expected to be included in release 4.9. Users are advised to watch for the 4.9 release and to upgrade when it becomes available. There are no workarounds for this vulnerability aside from manually patching with the diff in commit `cde4e9839`.
Severity ?
7.3 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.8
|
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CVE-2023-31129 (GCVE-0-2023-31129)
Vulnerability from nvd – Published: 2023-05-08 20:51 – Updated: 2025-01-29 14:30
VLAI?
Title
Contiki-NG missing NULL pointer check in IPv6 neighbor discovery
Summary
The Contiki-NG operating system versions 4.8 and prior can be triggered to dereference a NULL pointer in the message handling code for IPv6 router solicitiations. Contiki-NG contains an implementation of IPv6 Neighbor Discovery (ND) in the module `os/net/ipv6/uip-nd6.c`. The ND protocol includes a message type called Router Solicitation (RS), which is used to locate routers and update their address information via the SLLAO (Source Link-Layer Address Option). If the indicated source address changes, a given neighbor entry is set to the STALE state.
The message handler does not check for RS messages with an SLLAO that indicates a link-layer address change that a neighbor entry can actually be created for the indicated address. The resulting pointer is used without a check, leading to the dereference of a NULL pointer of type `uip_ds6_nbr_t`.
The problem has been patched in the `develop` branch of Contiki-NG, and will be included in the upcoming 4.9 release. As a workaround, users can apply Contiki-NG pull request #2271 to patch the problem directly.
Severity ?
7.5 (High)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
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| contiki-ng | contiki-ng |
Affected:
<= 4.8
|
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CVE-2023-30546 (GCVE-0-2023-30546)
Vulnerability from nvd – Published: 2023-04-26 18:14 – Updated: 2025-01-30 21:31
VLAI?
Title
Contiki-NG has off-by-one error in Antelope DBMS
Summary
Contiki-NG is an operating system for Internet of Things devices. An off-by-one error can be triggered in the Antelope database management system in the Contiki-NG operating system in versions 4.8 and prior. The problem exists in the Contiki File System (CFS) backend for the storage of data (file os/storage/antelope/storage-cfs.c). In the functions `storage_get_index` and `storage_put_index`, a buffer for merging two strings is allocated with one byte less than the maximum size of the merged strings, causing subsequent function calls to the cfs_open function to read from memory beyond the buffer size. The vulnerability has been patched in the "develop" branch of Contiki-NG, and is expected to be included in the next release. As a workaround, the problem can be fixed by applying the patch in Contiki-NG pull request #2425.
Severity ?
9.8 (Critical)
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.8
|
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CVE-2023-28116 (GCVE-0-2023-28116)
Vulnerability from nvd – Published: 2023-03-17 21:22 – Updated: 2025-02-25 14:53
VLAI?
Title
Buffer overflow in L2CAP due to misconfigured MTU
Summary
Contiki-NG is an open-source, cross-platform operating system for internet of things (IoT) devices. In versions 4.8 and prior, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-NG operating system. The network stack of Contiki-NG uses a global buffer (packetbuf) for processing of packets, with the size of PACKETBUF_SIZE. In particular, when using the BLE L2CAP module with the default configuration, the PACKETBUF_SIZE value becomes larger then the actual size of the packetbuf. When large packets are processed by the L2CAP module, a buffer overflow can therefore occur when copying the packet data to the packetbuf. The vulnerability has been patched in the "develop" branch of Contiki-NG, and will be included in release 4.9. The problem can be worked around by applying the patch manually.
Severity ?
8.1 (High)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.8
|
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CVE-2023-29001 (GCVE-0-2023-29001)
Vulnerability from cvelistv5 – Published: 2024-11-27 18:20 – Updated: 2024-11-27 19:22
VLAI?
Title
Uncontrolled recursion due to insufficient validation of the IPv6 source routing header in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for IoT devices. The Contiki-NG operating system processes source routing headers (SRH) in its two alternative RPL protocol implementations. The IPv6 implementation uses the results of this processing to determine whether an incoming packet should be forwarded to another host. Because of missing validation of the resulting next-hop address, an uncontrolled recursion may occur in the tcpip_ipv6_output function in the os/net/ipv6/tcpip.c module when receiving a packet with a next-hop address that is a local address. Attackers that have the possibility to send IPv6 packets to the Contiki-NG host can therefore trigger deeply nested recursive calls, which can cause a stack overflow. The vulnerability has not been patched in the current release of Contiki-NG, but is expected to be patched in the next release. The problem can be fixed by applying the patch in Contiki-NG pull request #2264. Users are advised to either apply the patch manually or to wait for the next release. There are no known workarounds for this vulnerability.
Severity ?
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2024-41125 (GCVE-0-2024-41125)
Vulnerability from cvelistv5 – Published: 2024-11-27 18:20 – Updated: 2024-11-27 19:22
VLAI?
Title
Out-of-bounds read in SNMP when decoding a string in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-ber.c module, where the function snmp_ber_decode_string_len_buffer decodes the string length from a received SNMP packet. In one place, one byte is read from the buffer, without checking that the buffer has another byte available, leading to a possible out-of-bounds read. The problem has been patched in Contiki-NG pull request #2936. It will be included in the next release of Contiki-NG. Users are advised to apply the patch manually or to wait for the next release. A workaround is to disable the SNMP module in the Contiki-NG build configuration.
Severity ?
8.4 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2024-41126 (GCVE-0-2024-41126)
Vulnerability from cvelistv5 – Published: 2024-11-27 18:20 – Updated: 2024-11-27 19:22
VLAI?
Title
Out-of-bounds read when decoding SNMP messages in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-message.c module, where the snmp_message_decode function fails to check the boundary of the message buffer when reading a byte from it immediately after decoding an object identifier (OID). The problem has been patched in Contiki-NG pull request 2937. It will be included in the next release of Contiki-NG. Users are advised to either apply the patch manually or to wait for the next release. A workaround is to disable the SNMP module in the Contiki-NG build configuration.
Severity ?
8.4 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2024-47181 (GCVE-0-2024-47181)
Vulnerability from cvelistv5 – Published: 2024-11-27 18:20 – Updated: 2024-11-27 19:20
VLAI?
Title
Unaligned memory access in RPL option processing in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for IoT devices. An unaligned memory access can be triggered in the two RPL implementations of the Contiki-NG operating system. The problem can occur when either one of these RPL implementations is enabled and connected to an RPL instance. If an IPv6 packet containing an odd number of padded bytes before the RPL option, it can cause the rpl_ext_header_hbh_update function to read a 16-bit integer from an odd address. The impact of this unaligned read is architecture-dependent, but can potentially cause the system to crash. The problem has not been patched as of release 4.9, but will be included in the next release. One can apply the changes in Contiki-NG pull request #2962 to patch the system or wait for the next release.
Severity ?
7.5 (High)
CWE
- CWE-704 - Incorrect Type Conversion or Cast
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2023-50926 (GCVE-0-2023-50926)
Vulnerability from cvelistv5 – Published: 2024-02-14 19:28 – Updated: 2024-08-02 22:23
VLAI?
Title
Unvalidated DIO prefix info length in RPL-Lite in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds read can be caused by an incoming DIO message when using the RPL-Lite implementation in the Contiki-NG operating system. More specifically, the prefix information of the DIO message contains a field that specifies the length of an IPv6 address prefix. The value of this field is not validated, which means that an attacker can set a value that is longer than the maximum prefix length. Subsequently, a memcmp function call that compares different prefixes can be called with a length argument that surpasses the boundary of the array allocated for the prefix, causing an out-of-bounds read. The problem has been patched in the "develop" branch of Contiki-NG, and is expected to be included in the next release. Users are advised to update as soon as they are able to or to manually apply the changes in Contiki-NG pull request #2721.
Severity ?
7.5 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2023-50927 (GCVE-0-2023-50927)
Vulnerability from cvelistv5 – Published: 2024-02-14 19:22 – Updated: 2025-04-24 15:15
VLAI?
Title
Insufficient boundary checks for DIO and DAO messages in RPL-Lite in Contiki-NG
Summary
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An attacker can trigger out-of-bounds reads in the RPL-Lite implementation of the RPL protocol in the Contiki-NG operating system. This vulnerability is caused by insufficient control of the lengths for DIO and DAO messages, in particular when they contain RPL sub-option headers. The problem has been patched in Contiki-NG 4.9. Users are advised to upgrade. Users unable to upgrade should manually apply the code changes in PR #2484.
Severity ?
8.6 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
< 4.9
|
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CVE-2023-48229 (GCVE-0-2023-48229)
Vulnerability from cvelistv5 – Published: 2024-02-14 18:30 – Updated: 2024-08-02 21:23
VLAI?
Title
Out-of-bounds write in the radio driver for Contiki-NG nRF platforms
Summary
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds write exists in the driver for IEEE 802.15.4 radios on nRF platforms in the Contiki-NG operating system. The problem is triggered when parsing radio frames in the `read_frame` function in the `arch/cpu/nrf/net/nrf-ieee-driver-arch.c` module. More specifically, the `read_frame` function performs an incomplete validation of the payload length of the packet, which is a value that can be set by an external party that sends radio packets to a Contiki-NG system. Although the value is validated to be in the range of the MTU length, it is not validated to fit into the given buffer into which the packet will be copied. The problem has been patched in the "develop" branch of Contiki-NG and is expected to be included in subsequent releases. Users are advised to update their develop branch or to update to a subsequent release when available. Users unable to upgrade should consider manually applying the changes in PR #2741.
Severity ?
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2020-27634 (GCVE-0-2020-27634)
Vulnerability from cvelistv5 – Published: 2023-10-10 00:00 – Updated: 2024-09-19 15:04
VLAI?
Summary
In Contiki 4.5, TCP ISNs are improperly random.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2023-37459 (GCVE-0-2023-37459)
Vulnerability from cvelistv5 – Published: 2023-09-15 19:19 – Updated: 2024-09-25 18:04
VLAI?
Title
Out-of-bounds read when processing a received IPv6 packet
Summary
Contiki-NG is an operating system for internet-of-things devices. In versions 4.9 and prior, when a packet is received, the Contiki-NG network stack attempts to start the periodic TCP timer if it is a TCP packet with the SYN flag set. But the implementation does not first verify that a full TCP header has been received. Specifically, the implementation attempts to access the flags field from the TCP buffer in the following conditional expression in the `check_for_tcp_syn` function. For this reason, an attacker can inject a truncated TCP packet, which will lead to an out-of-bound read from the packet buffer. As of time of publication, a patched version is not available. As a workaround, one can apply the changes in Contiki-NG pull request #2510 to patch the system.
Severity ?
5.3 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2023-37281 (GCVE-0-2023-37281)
Vulnerability from cvelistv5 – Published: 2023-09-15 19:17 – Updated: 2024-09-25 18:05
VLAI?
Title
Out-of-bounds read during IPHC address decompression
Summary
Contiki-NG is an operating system for internet-of-things devices. In versions 4.9 and prior, when processing the various IPv6 header fields during IPHC header decompression, Contiki-NG confirms the received packet buffer contains enough data as needed for that field. But no similar check is done before decompressing the IPv6 address. Therefore, up to 16 bytes can be read out of bounds on the line with the statement `memcpy(&ipaddr->u8[16 - postcount], iphc_ptr, postcount);`. The value of `postcount` depends on the address compression used in the received packet and can be controlled by the attacker. As a result, an attacker can inject a packet that causes an out-of-bound read. As of time of publication, a patched version is not available. As a workaround, one can apply the changes in Contiki-NG pull request #2509 to patch the system.
Severity ?
5.3 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.9
|
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CVE-2023-34101 (GCVE-0-2023-34101)
Vulnerability from cvelistv5 – Published: 2023-06-14 14:50 – Updated: 2024-12-30 15:37
VLAI?
Title
Contiki-NG vulnerable to out-of-bounds read when processing ICMP DAO input
Summary
Contiki-NG is an operating system for internet of things devices. In version 4.8 and prior, when processing ICMP DAO packets in the `dao_input_storing` function, the Contiki-NG OS does not verify that the packet buffer is big enough to contain the bytes it needs before accessing them. Up to 16 bytes can be read out of bounds in the `dao_input_storing` function. An attacker can truncate an ICMP packet so that it does not contain enough data, leading to an out-of-bounds read on these lines. The problem has been patched in the "develop" branch of Contiki-NG, and is expected to be included in release 4.9. As a workaround, one can apply the changes in Contiki-NG pull request #2435 to patch the system.
Severity ?
7.3 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.8
|
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CVE-2023-34100 (GCVE-0-2023-34100)
Vulnerability from cvelistv5 – Published: 2023-06-09 17:30 – Updated: 2025-01-06 18:09
VLAI?
Title
Out-of-Bounds Read in contiki-ng
Summary
Contiki-NG is an open-source, cross-platform operating system for IoT devices. When reading the TCP MSS option value from an incoming packet, the Contiki-NG OS does not verify that certain buffer indices to read from are within the bounds of the IPv6 packet buffer, uip_buf. In particular, there is a 2-byte buffer read in the module os/net/ipv6/uip6.c. The buffer is indexed using 'UIP_IPTCPH_LEN + 2 + c' and 'UIP_IPTCPH_LEN + 3 + c', but the uip_buf buffer may not have enough data, resulting in a 2-byte read out of bounds. The problem has been patched in the "develop" branch of Contiki-NG, and is expected to be included in release 4.9. Users are advised to watch for the 4.9 release and to upgrade when it becomes available. There are no workarounds for this vulnerability aside from manually patching with the diff in commit `cde4e9839`.
Severity ?
7.3 (High)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.8
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CVE-2023-31129 (GCVE-0-2023-31129)
Vulnerability from cvelistv5 – Published: 2023-05-08 20:51 – Updated: 2025-01-29 14:30
VLAI?
Title
Contiki-NG missing NULL pointer check in IPv6 neighbor discovery
Summary
The Contiki-NG operating system versions 4.8 and prior can be triggered to dereference a NULL pointer in the message handling code for IPv6 router solicitiations. Contiki-NG contains an implementation of IPv6 Neighbor Discovery (ND) in the module `os/net/ipv6/uip-nd6.c`. The ND protocol includes a message type called Router Solicitation (RS), which is used to locate routers and update their address information via the SLLAO (Source Link-Layer Address Option). If the indicated source address changes, a given neighbor entry is set to the STALE state.
The message handler does not check for RS messages with an SLLAO that indicates a link-layer address change that a neighbor entry can actually be created for the indicated address. The resulting pointer is used without a check, leading to the dereference of a NULL pointer of type `uip_ds6_nbr_t`.
The problem has been patched in the `develop` branch of Contiki-NG, and will be included in the upcoming 4.9 release. As a workaround, users can apply Contiki-NG pull request #2271 to patch the problem directly.
Severity ?
7.5 (High)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.8
|
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CVE-2023-30546 (GCVE-0-2023-30546)
Vulnerability from cvelistv5 – Published: 2023-04-26 18:14 – Updated: 2025-01-30 21:31
VLAI?
Title
Contiki-NG has off-by-one error in Antelope DBMS
Summary
Contiki-NG is an operating system for Internet of Things devices. An off-by-one error can be triggered in the Antelope database management system in the Contiki-NG operating system in versions 4.8 and prior. The problem exists in the Contiki File System (CFS) backend for the storage of data (file os/storage/antelope/storage-cfs.c). In the functions `storage_get_index` and `storage_put_index`, a buffer for merging two strings is allocated with one byte less than the maximum size of the merged strings, causing subsequent function calls to the cfs_open function to read from memory beyond the buffer size. The vulnerability has been patched in the "develop" branch of Contiki-NG, and is expected to be included in the next release. As a workaround, the problem can be fixed by applying the patch in Contiki-NG pull request #2425.
Severity ?
9.8 (Critical)
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.8
|
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CVE-2023-28116 (GCVE-0-2023-28116)
Vulnerability from cvelistv5 – Published: 2023-03-17 21:22 – Updated: 2025-02-25 14:53
VLAI?
Title
Buffer overflow in L2CAP due to misconfigured MTU
Summary
Contiki-NG is an open-source, cross-platform operating system for internet of things (IoT) devices. In versions 4.8 and prior, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-NG operating system. The network stack of Contiki-NG uses a global buffer (packetbuf) for processing of packets, with the size of PACKETBUF_SIZE. In particular, when using the BLE L2CAP module with the default configuration, the PACKETBUF_SIZE value becomes larger then the actual size of the packetbuf. When large packets are processed by the L2CAP module, a buffer overflow can therefore occur when copying the packet data to the packetbuf. The vulnerability has been patched in the "develop" branch of Contiki-NG, and will be included in release 4.9. The problem can be worked around by applying the patch manually.
Severity ?
8.1 (High)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
<= 4.8
|
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