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.
6359 vulnerabilities reference this CWE, most recent first.
CVE-2021-3443 (GCVE-0-2021-3443)
Vulnerability from cvelistv5 – Published: 2021-03-25 18:45 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
A NULL pointer dereference flaw was found in the way Jasper versions before 2.0.27 handled component references in the JP2 image format decoder. A specially crafted JP2 image file could cause an application using the Jasper library to crash when opened.
Severity
No CVSS data available.
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1939233 | x_refsource_MISC |
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CVE-2021-3322 (GCVE-0-2021-3322)
Vulnerability from cvelistv5 – Published: 2021-10-12 21:50 – Updated: 2024-09-16 18:45
VLAI
EPSS
VEX
Title
Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr
Summary
Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3
Severity
6.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| http://github.com/zephyrproject-rtos/zephyr/secur… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject-rtos | zephyr |
Affected:
>=2.4.0 , < unspecified
(custom)
|
Date Public
2021-04-21 00:00
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CVE-2021-3320 (GCVE-0-2021-3320)
Vulnerability from cvelistv5 – Published: 2021-05-24 21:40 – Updated: 2024-09-16 22:25
VLAI
EPSS
VEX
Title
Type Confusion in 802154 ACK Frames Handling
Summary
Type Confusion in 802154 ACK Frames Handling. Zephyr versions >= v2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2hm7
Severity
5.9 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| http://github.com/zephyrproject-rtos/zephyr/secur… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject-rtos | zephyr |
Affected:
v2.4.0 , < unspecified
(custom)
|
Date Public
2021-04-14 00:00
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CVE-2021-3319 (GCVE-0-2021-3319)
Vulnerability from cvelistv5 – Published: 2021-10-05 20:50 – Updated: 2024-09-16 22:14
VLAI
EPSS
VEX
Title
DOS: Incorrect 802154 Frame Validation for Omitted Source / Dest Addresses
Summary
DOS: Incorrect 802154 Frame Validation for Omitted Source / Dest Addresses. Zephyr versions >= > v2.4.0 contain NULL Pointer Dereference (CWE-476), Attempt to Access Child of a Non-structure Pointer (CWE-588). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-94jg-2p6q-5364
Severity
6.5 (Medium)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| http://github.com/zephyrproject-rtos/zephyr/secur… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject-rtos | zephyr |
Affected:
> v2.4.0 , < unspecified
(custom)
|
Date Public
2020-04-14 00:00
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CVE-2021-1122 (GCVE-0-2021-1122)
Vulnerability from cvelistv5 – Published: 2021-10-29 19:30 – Updated: 2024-08-03 15:55
VLAI
EPSS
VEX
Summary
NVIDIA vGPU software contains a vulnerability in the Virtual GPU Manager (vGPU plugin), where it can dereference a NULL pointer, which may lead to denial of service.
Severity
5.5 (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 Virtual GPU Software |
Affected:
vGPU version 13.x (prior to 13.1), 12.x (prior to 12.4), version 11.x (prior to 11.6) and version 8.x (prior 8.9).
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CVE-2021-1116 (GCVE-0-2021-1116)
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), where a NULL pointer dereference in the kernel, created within user mode code, may lead to a denial of service in the form of a system crash.
Severity
5.5 (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-2021-1115 (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
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|---|---|
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Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NVIDIA | NVIDIA GPU Display Driver |
Affected:
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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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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.