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18 vulnerabilities found for mbed by mbed
VAR-201911-0591
Vulnerability from variot - Updated: 2024-11-23 22:44Buffer overflows were discovered in the CoAP library in Arm Mbed OS 5.14.0. The CoAP parser is responsible for parsing received CoAP packets. The function sn_coap_parser_options_parse() parses CoAP input linearly using a while loop. Once an option is parsed in a loop, the current point (packet_data_pptr) is increased correspondingly. The pointer is restricted by the size of the received buffer, as well as by the 0xFF delimiter byte. Inside each while loop, the check of the value of packet_data_pptr is not strictly enforced. More specifically, inside a loop, packet_data_pptr could be increased and then dereferenced without checking. Moreover, there are many other functions in the format of sn_coap_parser_***() that do not check whether the pointer is within the bounds of the allocated buffer. All of these lead to heap-based or stack-based buffer overflows, depending on how the CoAP packet buffer is allocated. Arm Mbed OS Contains an out-of-bounds vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. ARM Mbed OS is a set of open source embedded operating system dedicated to the Internet of Things of the British ARM company. CoAP library is one of the Constrained Application Protocol (CoAP) libraries. The vulnerability stems from the fact that when a network system or product performs an operation on memory, the data boundary is not correctly verified, resulting in an incorrect read and write operation to other associated memory locations. Attackers can use this vulnerability to cause buffer overflow or heap overflow. A remote attacker can use the specially crafted file to exploit this vulnerability to execute arbitrary code on the system
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VAR-201911-0590
Vulnerability from variot - Updated: 2024-11-23 22:29An integer overflow was discovered in the CoAP library in Arm Mbed OS 5.14.0. The function sn_coap_builder_calc_needed_packet_data_size_2() is used to calculate the required memory for the CoAP message from the sn_coap_hdr_s data structure. Both returned_byte_count and src_coap_msg_ptr->payload_len are of type uint16_t. When added together, the result returned_byte_count can wrap around the maximum uint16_t value. As a result, insufficient buffer space is allocated for the corresponding CoAP message. ARM Mbed OS is a set of open source embedded operating system dedicated to the Internet of Things of the British ARM company. CoAP library is one of the Constrained Application Protocol (CoAP) libraries. The vulnerability stems from the fact that the network system or product did not correctly verify the input data. No detailed vulnerability details are currently available. A remote attacker can use the specially crafted request to exploit the vulnerability to execute arbitrary code on the system
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CVE-2024-48986 (GCVE-0-2024-48986)
Vulnerability from nvd – Published: 2024-11-20 00:00 – Updated: 2024-11-26 15:57
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. Its hci parsing software dynamically determines the length of certain hci packets by reading a byte from its header. Certain events cause a callback, the logic for which allocates a buffer (the length of which is determined by looking up the event type in a table). The subsequent write operation, however, copies the amount of data specified in the packet header, which may lead to a buffer overflow. This bug is trivial to exploit for a denial of service but is not certain to suffice to bring the system down and can generally not be exploited further because the exploitable buffer is dynamically allocated.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 20:58 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
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CVE-2024-48984 (GCVE-0-2024-48984)
Vulnerability from nvd – Published: 2024-11-20 00:00 – Updated: 2024-11-25 21:09
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. When parsing hci reports, the hci parsing software dynamically determines the length of a list of reports by reading a byte from an input stream. It then fetches the length of the first report, uses it to calculate the beginning of the second report, etc. In doing this, it tracks the largest report so it can later allocate a buffer that fits every individual report (but only one at a time). It does not, however, validate that these addresses are all contained within the buffer passed to hciEvtProcessLeExtAdvReport. It is then possible, though unlikely, that the buffer designated to hold the reports is allocated in such a way that one of these out-of-bounds length fields is contained within the new buffer. When the (n-1)th report is copied, it overwrites the length field of the nth report. This now corrupted length field is then used for a memcpy into the new buffer, which may lead to a buffer overflow.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 21:08 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
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CVE-2024-48982 (GCVE-0-2024-48982)
Vulnerability from nvd – Published: 2024-11-20 00:00 – Updated: 2024-11-25 21:03
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. Its hci parsing software dynamically determines the length of certain hci packets by reading a byte from its header. This value is assumed to be greater than or equal to 3, but the software doesn't ensure that this is the case. Supplying a length less than 3 leads to a buffer overflow in a buffer that is allocated later. It is simultaneously possible to cause another integer overflow by supplying large length values because the provided length value is increased by a few bytes to account for additional information that is supposed to be stored there. This bug is trivial to exploit for a denial of service but is not certain to suffice to bring the system down and can generally not be exploited further because the exploitable buffer is dynamically allocated.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 21:03 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
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CVE-2024-48985 (GCVE-0-2024-48985)
Vulnerability from nvd – Published: 2024-11-20 00:00 – Updated: 2024-11-25 21:08
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. During processing of HCI packets, the software dynamically determines the length of the packet data by reading 2 bytes from the packet data. A buffer is then allocated to contain the entire packet, the size of which is calculated as the length of the packet body determined earlier and the header length. If the allocate fails because the specified packet is too large, no exception handling occurs and hciTrSerialRxIncoming continues to write bytes into the 4-byte large temporary header buffer, leading to a buffer overflow. This can be leveraged into an arbitrary write by an attacker. It is possible to overwrite the pointer to the buffer that is supposed to receive the contents of the packet body but which couldn't be allocated. One can then overwrite the state variable used by the function to determine which step of the parsing process is currently being executed. This advances the function to the next state, where it proceeds to copy data to that arbitrary location. The packet body is then written wherever the corrupted data pointer is pointing.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 21:08 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
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CVE-2024-48983 (GCVE-0-2024-48983)
Vulnerability from nvd – Published: 2024-11-20 00:00 – Updated: 2024-11-25 21:04
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. During processing of HCI packets, the software dynamically determines the length of the packet data by reading 2 bytes from the packet header. A buffer is then allocated to contain the entire packet, the size of which is calculated as the length of the packet body determined earlier plus the header length. WsfMsgAlloc then increments this again by sizeof(wsfMsg_t). This may cause an integer overflow that results in the buffer being significantly too small to contain the entire packet. This may cause a buffer overflow of up to 65 KB . This bug is trivial to exploit for a denial of service but can generally not be exploited further because the exploitable buffer is dynamically allocated.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 21:04 UTC
CWE
- n/a
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
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CVE-2024-48981 (GCVE-0-2024-48981)
Vulnerability from nvd – Published: 2024-11-20 00:00 – Updated: 2024-11-25 21:07
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. During processing of HCI packets, the software dynamically determines the length of the packet header by looking up the identifying first byte and matching it against a table of possible lengths. The initial parsing function, hciTrSerialRxIncoming does not drop packets with invalid identifiers but also does not set a safe default for the length of unknown packets' headers, leading to a buffer overflow. This can be leveraged into an arbitrary write by an attacker. It is possible to overwrite the pointer to a not-yet-allocated buffer that is supposed to receive the contents of the packet body. One can then overwrite the state variable used by the function to determine which state of packet parsing is currently occurring. Because the buffer is allocated when the last byte of the header has been copied, the combination of having a bad header length variable that will never match the counter variable and being able to overwrite the state variable with the resulting buffer overflow can be used to advance the function to the next step while skipping the buffer allocation and resulting pointer write. The next 16 bytes from the packet body are then written wherever the corrupted data pointer is pointing.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 21:06 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
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CVE-2019-17211 (GCVE-0-2019-17211)
Vulnerability from nvd – Published: 2019-11-05 15:06 – Updated: 2024-08-05 01:33
VLAI
EPSS
VEX
Summary
An integer overflow was discovered in the CoAP library in Arm Mbed OS 5.14.0. The function sn_coap_builder_calc_needed_packet_data_size_2() is used to calculate the required memory for the CoAP message from the sn_coap_hdr_s data structure. Both returned_byte_count and src_coap_msg_ptr->payload_len are of type uint16_t. When added together, the result returned_byte_count can wrap around the maximum uint16_t value. As a result, insufficient buffer space is allocated for the corresponding CoAP message.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/issues/11804 | x_refsource_MISC |
Date Public
2019-11-03 00:00
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CVE-2019-17212 (GCVE-0-2019-17212)
Vulnerability from nvd – Published: 2019-11-05 14:53 – Updated: 2024-08-05 01:33
VLAI
EPSS
VEX
Summary
Buffer overflows were discovered in the CoAP library in Arm Mbed OS 5.14.0. The CoAP parser is responsible for parsing received CoAP packets. The function sn_coap_parser_options_parse() parses CoAP input linearly using a while loop. Once an option is parsed in a loop, the current point (*packet_data_pptr) is increased correspondingly. The pointer is restricted by the size of the received buffer, as well as by the 0xFF delimiter byte. Inside each while loop, the check of the value of *packet_data_pptr is not strictly enforced. More specifically, inside a loop, *packet_data_pptr could be increased and then dereferenced without checking. Moreover, there are many other functions in the format of sn_coap_parser_****() that do not check whether the pointer is within the bounds of the allocated buffer. All of these lead to heap-based or stack-based buffer overflows, depending on how the CoAP packet buffer is allocated.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/issues/11803 | x_refsource_MISC |
Date Public
2019-11-03 00:00
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CVE-2024-48983 (GCVE-0-2024-48983)
Vulnerability from cvelistv5 – Published: 2024-11-20 00:00 – Updated: 2024-11-25 21:04
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. During processing of HCI packets, the software dynamically determines the length of the packet data by reading 2 bytes from the packet header. A buffer is then allocated to contain the entire packet, the size of which is calculated as the length of the packet body determined earlier plus the header length. WsfMsgAlloc then increments this again by sizeof(wsfMsg_t). This may cause an integer overflow that results in the buffer being significantly too small to contain the entire packet. This may cause a buffer overflow of up to 65 KB . This bug is trivial to exploit for a denial of service but can generally not be exploited further because the exploitable buffer is dynamically allocated.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 21:04 UTC
CWE
- n/a
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
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CVE-2024-48985 (GCVE-0-2024-48985)
Vulnerability from cvelistv5 – Published: 2024-11-20 00:00 – Updated: 2024-11-25 21:08
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. During processing of HCI packets, the software dynamically determines the length of the packet data by reading 2 bytes from the packet data. A buffer is then allocated to contain the entire packet, the size of which is calculated as the length of the packet body determined earlier and the header length. If the allocate fails because the specified packet is too large, no exception handling occurs and hciTrSerialRxIncoming continues to write bytes into the 4-byte large temporary header buffer, leading to a buffer overflow. This can be leveraged into an arbitrary write by an attacker. It is possible to overwrite the pointer to the buffer that is supposed to receive the contents of the packet body but which couldn't be allocated. One can then overwrite the state variable used by the function to determine which step of the parsing process is currently being executed. This advances the function to the next state, where it proceeds to copy data to that arbitrary location. The packet body is then written wherever the corrupted data pointer is pointing.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 21:08 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
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CVE-2024-48986 (GCVE-0-2024-48986)
Vulnerability from cvelistv5 – Published: 2024-11-20 00:00 – Updated: 2024-11-26 15:57
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. Its hci parsing software dynamically determines the length of certain hci packets by reading a byte from its header. Certain events cause a callback, the logic for which allocates a buffer (the length of which is determined by looking up the event type in a table). The subsequent write operation, however, copies the amount of data specified in the packet header, which may lead to a buffer overflow. This bug is trivial to exploit for a denial of service but is not certain to suffice to bring the system down and can generally not be exploited further because the exploitable buffer is dynamically allocated.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 20:58 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
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CVE-2024-48981 (GCVE-0-2024-48981)
Vulnerability from cvelistv5 – Published: 2024-11-20 00:00 – Updated: 2024-11-25 21:07
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. During processing of HCI packets, the software dynamically determines the length of the packet header by looking up the identifying first byte and matching it against a table of possible lengths. The initial parsing function, hciTrSerialRxIncoming does not drop packets with invalid identifiers but also does not set a safe default for the length of unknown packets' headers, leading to a buffer overflow. This can be leveraged into an arbitrary write by an attacker. It is possible to overwrite the pointer to a not-yet-allocated buffer that is supposed to receive the contents of the packet body. One can then overwrite the state variable used by the function to determine which state of packet parsing is currently occurring. Because the buffer is allocated when the last byte of the header has been copied, the combination of having a bad header length variable that will never match the counter variable and being able to overwrite the state variable with the resulting buffer overflow can be used to advance the function to the next step while skipping the buffer allocation and resulting pointer write. The next 16 bytes from the packet body are then written wherever the corrupted data pointer is pointing.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 21:06 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
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CVE-2024-48982 (GCVE-0-2024-48982)
Vulnerability from cvelistv5 – Published: 2024-11-20 00:00 – Updated: 2024-11-25 21:03
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. Its hci parsing software dynamically determines the length of certain hci packets by reading a byte from its header. This value is assumed to be greater than or equal to 3, but the software doesn't ensure that this is the case. Supplying a length less than 3 leads to a buffer overflow in a buffer that is allocated later. It is simultaneously possible to cause another integer overflow by supplying large length values because the provided length value is increased by a few bytes to account for additional information that is supposed to be stored there. This bug is trivial to exploit for a denial of service but is not certain to suffice to bring the system down and can generally not be exploited further because the exploitable buffer is dynamically allocated.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 21:03 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
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CVE-2024-48984 (GCVE-0-2024-48984)
Vulnerability from cvelistv5 – Published: 2024-11-20 00:00 – Updated: 2024-11-25 21:09
VLAI
EPSS
VEX
Summary
An issue was discovered in MBed OS 6.16.0. When parsing hci reports, the hci parsing software dynamically determines the length of a list of reports by reading a byte from an input stream. It then fetches the length of the first report, uses it to calculate the beginning of the second report, etc. In doing this, it tracks the largest report so it can later allocate a buffer that fits every individual report (but only one at a time). It does not, however, validate that these addresses are all contained within the buffer passed to hciEvtProcessLeExtAdvReport. It is then possible, though unlikely, that the buffer designated to hold the reports is allocated in such a way that one of these out-of-bounds length fields is contained within the new buffer. When the (n-1)th report is copied, it overwrites the length field of the nth report. This now corrupted length field is then used for a memcpy into the new buffer, which may lead to a buffer overflow.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-25 21:08 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
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CVE-2019-17211 (GCVE-0-2019-17211)
Vulnerability from cvelistv5 – Published: 2019-11-05 15:06 – Updated: 2024-08-05 01:33
VLAI
EPSS
VEX
Summary
An integer overflow was discovered in the CoAP library in Arm Mbed OS 5.14.0. The function sn_coap_builder_calc_needed_packet_data_size_2() is used to calculate the required memory for the CoAP message from the sn_coap_hdr_s data structure. Both returned_byte_count and src_coap_msg_ptr->payload_len are of type uint16_t. When added together, the result returned_byte_count can wrap around the maximum uint16_t value. As a result, insufficient buffer space is allocated for the corresponding CoAP message.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d0686fd30… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/issues/11804 | x_refsource_MISC |
Date Public
2019-11-03 00:00
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CVE-2019-17212 (GCVE-0-2019-17212)
Vulnerability from cvelistv5 – Published: 2019-11-05 14:53 – Updated: 2024-08-05 01:33
VLAI
EPSS
VEX
Summary
Buffer overflows were discovered in the CoAP library in Arm Mbed OS 5.14.0. The CoAP parser is responsible for parsing received CoAP packets. The function sn_coap_parser_options_parse() parses CoAP input linearly using a while loop. Once an option is parsed in a loop, the current point (*packet_data_pptr) is increased correspondingly. The pointer is restricted by the size of the received buffer, as well as by the 0xFF delimiter byte. Inside each while loop, the check of the value of *packet_data_pptr is not strictly enforced. More specifically, inside a loop, *packet_data_pptr could be increased and then dereferenced without checking. Moreover, there are many other functions in the format of sn_coap_parser_****() that do not check whether the pointer is within the bounds of the allocated buffer. All of these lead to heap-based or stack-based buffer overflows, depending on how the CoAP packet buffer is allocated.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/blob/d91ed5fa4… | x_refsource_MISC |
| https://github.com/ARMmbed/mbed-os/issues/11803 | x_refsource_MISC |
Date Public
2019-11-03 00:00
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