Common Weakness Enumeration

CWE-476

Allowed

NULL Pointer Dereference

Abstraction: Base · Status: Stable

API response cwe.mitre.org

The product dereferences a pointer that it expects to be valid but is NULL.

6310 vulnerabilities reference this CWE, most recent first.

CVE-2021-3514 (GCVE-0-2021-3514)

Vulnerability from cvelistv5 – Published: 2021-05-28 00:00 – Updated: 2024-08-03 16:53
VLAI
Summary
When using a sync_repl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, causing a crash.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a 389-ds-base Affected: 389-ds-base 1.4.3
Show details on NVD website
To clipboard 

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CVE-2021-3480 (GCVE-0-2021-3480)

Vulnerability from cvelistv5 – Published: 2021-05-20 12:14 – Updated: 2024-08-03 16:53
VLAI
Summary
A flaw was found in slapi-nis in versions before 0.56.7. A NULL pointer dereference during the parsing of the Binding DN could allow an unauthenticated attacker to crash the 389-ds-base directory server. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a slapi-nis Affected: slapi-nis 0.56.7
Show details on NVD website
To clipboard 

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CVE-2021-3467 (GCVE-0-2021-3467)

Vulnerability from cvelistv5 – Published: 2021-03-25 18:45 – Updated: 2024-08-03 16:53
VLAI
Summary
A NULL pointer dereference flaw was found in the way Jasper versions before 2.0.26 handled component references in CDEF box 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
Impacted products
Vendor Product Version
n/a jasper Affected: jasper 2.0.26
Show details on NVD website
To clipboard 

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CVE-2021-3463 (GCVE-0-2021-3463)

Vulnerability from cvelistv5 – Published: 2021-04-13 20:41 – Updated: 2024-08-03 16:53
VLAI
Summary
A null pointer dereference vulnerability in Lenovo Power Management Driver for Windows 10, prior to version 1.67.17.54, that could cause systems to experience a blue screen error.
Severity
4.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Lenovo Power Management Driver for Windows 10 Affected: unspecified , < 1.67.17.54 (custom)
Create a notification for this product.
Credits
Lenovo thanks Aobo Wang of Chaitin Security Research Lab for reporting these issues.
Show details on NVD website
To clipboard 

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CVE-2021-3443 (GCVE-0-2021-3443)

Vulnerability from cvelistv5 – Published: 2021-03-25 18:45 – Updated: 2024-08-03 16:53
VLAI
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
Impacted products
Vendor Product Version
n/a jasper Affected: jasper 2.0.27
Show details on NVD website
To clipboard 

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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
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)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
Impacted products
Vendor Product Version
zephyrproject-rtos zephyr Affected: >=2.4.0 , < unspecified (custom)
Create a notification for this product.
Date Public
2021-04-21 00:00
Show details on NVD website
To clipboard 

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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
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)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
Impacted products
Vendor Product Version
zephyrproject-rtos zephyr Affected: v2.4.0 , < unspecified (custom)
Create a notification for this product.
Date Public
2021-04-14 00:00
Show details on NVD website
To clipboard 

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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
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)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
CWE
  • CWE-476 - NULL Pointer Dereference (CWE-476)
  • CWE-588 - Attempt to Access Child of a Non-structure Pointer (CWE-588)
Assigner
References
Impacted products
Vendor Product Version
zephyrproject-rtos zephyr Affected: > v2.4.0 , < unspecified (custom)
Create a notification for this product.
Date Public
2020-04-14 00:00
Show details on NVD website
To clipboard 

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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
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)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
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).
Create a notification for this product.
Show details on NVD website
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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
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)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
NVIDIA NVIDIA GPU Display Driver Affected: All GPU Driver versions
Create a notification for this product.
Show details on NVD website
To clipboard 

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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.

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