Common Weakness Enumeration
CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6310 vulnerabilities reference this CWE, most recent first.
CVE-2021-1115 (GCVE-0-2021-1115)
Vulnerability from cvelistv5 – Published: 2021-10-27 20:35 – Updated: 2024-08-03 15:55
VLAI
EPSS
VEX
Summary
NVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for private IOCTLs, where an attacker with local unprivileged system access may cause a NULL pointer dereference, which may lead to denial of service in a component beyond the vulnerable component.
Severity
6.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://nvidia.custhelp.com/app/answers/detail/a_… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NVIDIA | NVIDIA GPU Display Driver |
Affected:
All GPU Driver versions
|
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CVE-2021-0251 (GCVE-0-2021-0251)
Vulnerability from cvelistv5 – Published: 2021-04-22 19:37 – Updated: 2024-09-16 18:56
VLAI
EPSS
VEX
Title
Junos OS: MX Series with MS-PIC, MS-SPC3, MS-MIC or MS-MPC: The BRAS Subscriber Services service activation portal is vulnerable to a Denial of Service (DoS) via malformed HTTP packets
Summary
A NULL Pointer Dereference vulnerability in the Captive Portal Content Delivery (CPCD) services daemon (cpcd) of Juniper Networks Junos OS on MX Series with MS-PIC, MS-SPC3, MS-MIC or MS-MPC allows an attacker to send malformed HTTP packets to the device thereby causing a Denial of Service (DoS), crashing the Multiservices PIC Management Daemon (mspmand) process thereby denying users the ability to login, while concurrently impacting other mspmand services and traffic through the device. Continued receipt and processing of these malformed packets will create a sustained Denial of Service (DoS) condition. While the Services PIC is restarting, all PIC services will be bypassed until the Services PIC completes its boot process. An attacker sending these malformed HTTP packets to the device who is not part of the Captive Portal experience is not able to exploit this issue. This issue is not applicable to MX RE-based CPCD platforms. This issue affects: Juniper Networks Junos OS on MX Series 17.3 version 17.3R1 and later versions prior to 17.4 versions 17.4R2-S9, 17.4R3-S2; 18.1 versions prior to 18.1R3-S9; 18.2 versions prior to 18.2R3-S3; 18.3 versions prior to 18.3R3-S1; 18.4 versions prior to 18.4R3; 19.1 versions prior to 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R2; 19.3 versions prior to 19.3R3. This issue does not affect: Juniper Networks Junos OS versions prior to 17.3R1.
Severity
8.6 (High)
CWE
- Denial of Service (DoS)
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA11144 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 17.3R1
(custom)
Affected: 17.3R1 , < 17.3* (custom) Affected: 17.4 , < 17.4R2-S9, 17.4R3-S2 (custom) Affected: 18.1 , < 18.1R3-S9 (custom) Affected: 18.2 , < 18.2R3-S3 (custom) Affected: 18.3 , < 18.3R3-S1 (custom) Affected: 18.4 , < 18.4R3 (custom) Affected: 19.1 , < 19.1R2-S2, 19.1R3 (custom) Affected: 19.2 , < 19.2R2 (custom) Affected: 19.3 , < 19.3R3 (custom) |
Date Public
2021-04-14 00:00
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CVE-2021-0206 (GCVE-0-2021-0206)
Vulnerability from cvelistv5 – Published: 2021-01-15 17:35 – Updated: 2024-09-17 01:15
VLAI
EPSS
VEX
Title
Junos OS: NFX Series, SRX Series: PFE may crash upon receipt of specific packet when SSL Proxy is configured.
Summary
A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS allows an attacker to send a specific packet causing the packet forwarding engine (PFE) to crash and restart, resulting in a Denial of Service (DoS). By continuously sending these specific packets, an attacker can repeatedly disable the PFE causing a sustained Denial of Service (DoS). This issue only affects Juniper Networks NFX Series, SRX Series platforms when SSL Proxy is configured. This issue affects Juniper Networks Junos OS on NFX Series and SRX Series: 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S1; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S2, 19.2R2; 19.3 versions prior to 19.3R2. This issue does not affect Juniper Networks Junos OS versions on NFX Series and SRX Series prior to 18.3R1.
Severity
7.5 (High)
CWE
- CWE-476 - NULL Pointer Dereference
- Denial of Service (DoS)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA11096 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
18.3R1 , < 18.3*
(custom)
Affected: 18.4 , < 18.4R3-S1 (custom) Affected: 19.1 , < 19.1R1-S6, 19.1R2-S2, 19.1R3 (custom) Affected: 19.2 , < 19.2R1-S2, 19.2R2 (custom) Affected: 19.3 , < 19.3R2 (custom) |
Date Public
2021-01-13 00:00
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CVE-2020-35538 (GCVE-0-2020-35538)
Vulnerability from cvelistv5 – Published: 2022-08-31 15:33 – Updated: 2024-08-04 17:02
VLAI
EPSS
VEX
Summary
A crafted input file could cause a null pointer dereference in jcopy_sample_rows() when processed by libjpeg-turbo.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/libjpeg-turbo/libjpeg-turbo/is… | x_refsource_MISC |
| https://github.com/libjpeg-turbo/libjpeg-turbo/co… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | libjpeg-turbo |
Affected:
libjpeg-turbo 2.0.5 onwards
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CVE-2020-35525 (GCVE-0-2020-35525)
Vulnerability from cvelistv5 – Published: 2022-09-01 00:00 – Updated: 2024-08-04 17:02
VLAI
EPSS
VEX
Summary
In SQlite 3.31.1, a potential null pointer derreference was found in the INTERSEC query processing.
Severity
No CVSS data available.
CWE
Assigner
References
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CVE-2020-35507 (GCVE-0-2020-35507)
Vulnerability from cvelistv5 – Published: 2021-01-04 14:24 – Updated: 2024-08-04 17:02
VLAI
EPSS
VEX
Summary
There's a flaw in bfd_pef_parse_function_stubs of bfd/pef.c in binutils in versions prior to 2.34 which could allow an attacker who is able to submit a crafted file to be processed by objdump to cause a NULL pointer dereference. The greatest threat of this flaw is to application availability.
Severity
No CVSS data available.
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1911691 | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021021… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/202107-24 | vendor-advisoryx_refsource_GENTOO |
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CVE-2020-35505 (GCVE-0-2020-35505)
Vulnerability from cvelistv5 – Published: 2021-05-28 10:20 – Updated: 2024-08-04 17:02
VLAI
EPSS
VEX
Summary
A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/04/16/3 | mailing-listx_refsource_MLIST |
| https://www.openwall.com/lists/oss-security/2021/… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1909769 | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021071… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/202208-27 | vendor-advisoryx_refsource_GENTOO |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
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CVE-2020-35504 (GCVE-0-2020-35504)
Vulnerability from cvelistv5 – Published: 2021-05-28 10:20 – Updated: 2024-08-04 17:02
VLAI
EPSS
VEX
Summary
A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions before 6.0.0. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/04/16/3 | mailing-listx_refsource_MLIST |
| https://bugzilla.redhat.com/show_bug.cgi?id=1909766 | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2021/… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021071… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/202208-27 | vendor-advisoryx_refsource_GENTOO |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
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CVE-2020-35503 (GCVE-0-2020-35503)
Vulnerability from cvelistv5 – Published: 2021-06-02 13:22 – Updated: 2024-08-04 17:02
VLAI
EPSS
VEX
Summary
A NULL pointer dereference flaw was found in the megasas-gen2 SCSI host bus adapter emulation of QEMU in versions before and including 6.0. This issue occurs in the megasas_command_cancelled() callback function while dropping a SCSI request. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1910346 | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021072… | x_refsource_CONFIRM |
Impacted products
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CVE-2020-35499 (GCVE-0-2020-35499)
Vulnerability from cvelistv5 – Published: 2021-02-19 19:49 – Updated: 2024-08-04 17:02
VLAI
EPSS
VEX
Summary
A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.
Severity
No CVSS data available.
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1910048 | x_refsource_MISC |
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Mitigation MIT-56
Implementation
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Requirements
Select a programming language that is not susceptible to these issues.
Mitigation
Implementation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Architecture and Design
Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Implementation
Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.