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.
6353 vulnerabilities reference this CWE, most recent first.
CVE-2021-27631 (GCVE-0-2021-27631)
Vulnerability from cvelistv5 – Published: 2021-06-09 00:00 – Updated: 2024-08-03 21:26
VLAI
EPSS
VEX
Summary
SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server), versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method EnqConvUniToSrvReq() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
Severity
7.5 (High)
CWE
- CWE-476 - Improper Input Validation (CWE-476)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SAP SE | SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server) |
Affected:
< KRNL32NUC - 7.22
Affected: < 7.22EXT Affected: < KRNL64NUC - 7.22 Affected: < 7.49 Affected: < KRNL64UC - 8.04 Affected: < 7.22 Affected: < 7.53 Affected: < 7.73 Affected: < KERNEL - 7.22 Affected: < 8.04 |
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CVE-2021-27630 (GCVE-0-2021-27630)
Vulnerability from cvelistv5 – Published: 2021-06-09 00:00 – Updated: 2024-08-03 21:26
VLAI
EPSS
VEX
Summary
SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server), versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method EnqConvUniToSrvReq() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
Severity
7.5 (High)
CWE
- CWE-476 - Improper Input Validation (CWE-476)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SAP SE | SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server) |
Affected:
< KRNL32NUC - 7.22
Affected: < 7.22EXT Affected: < KRNL64NUC - 7.22 Affected: < 7.49 Affected: < KRNL64UC - 8.04 Affected: < 7.22 Affected: < 7.53 Affected: < 7.73 Affected: < KERNEL - 7.22 Affected: < 8.04 |
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CVE-2021-27607 (GCVE-0-2021-27607)
Vulnerability from cvelistv5 – Published: 2021-06-09 00:00 – Updated: 2024-08-03 21:26
VLAI
EPSS
VEX
Summary
SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher), versions - KRNL32NUC - 7.22,7.22EXT, KRNL32UC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method ThSncIn() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
Severity
7.5 (High)
CWE
- CWE-476 - Improper Input Validation (CWE-476)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SAP SE | SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher) |
Affected:
< KRNL32NUC - 7.22
Affected: < 7.22EXT Affected: < KRNL32UC - 7.22 Affected: < KRNL64NUC - 7.22 Affected: < 7.49 Affected: < KRNL64UC - 8.04 Affected: < 7.22 Affected: < 7.53 Affected: < 7.73 Affected: < KERNEL - 7.22 Affected: < 8.04 Affected: < 7.77 Affected: < 7.81 Affected: < 7.82 Affected: < 7.83 |
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CVE-2021-26927 (GCVE-0-2021-26927)
Vulnerability from cvelistv5 – Published: 2021-02-23 19:03 – Updated: 2024-08-03 20:33
VLAI
EPSS
VEX
Summary
A flaw was found in jasper before 2.0.25. A null pointer dereference in jp2_decode in jp2_dec.c may lead to program crash and denial of service.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/jasper-software/jasper/commit/… | x_refsource_MISC |
| https://github.com/jasper-software/jasper/issues/265 | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
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CVE-2021-25674 (GCVE-0-2021-25674)
Vulnerability from cvelistv5 – Published: 2021-03-15 17:03 – Updated: 2024-08-03 20:11
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in SIMATIC S7-PLCSIM V5.4 (All versions). An attacker with local access to the system could cause a Denial-of-Service condition in the application when it is used to open a specially crafted file. As a consequence, a NULL pointer deference condition could cause the application to terminate unexpectedly and must be restarted to restore the service.
Severity
No CVSS data available.
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | SIMATIC S7-PLCSIM V5.4 |
Affected:
All versions
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CVE-2021-25491 (GCVE-0-2021-25491)
Vulnerability from cvelistv5 – Published: 2021-10-06 17:10 – Updated: 2024-08-03 20:03
VLAI
EPSS
VEX
Summary
A vulnerability in mfc driver prior to SMR Oct-2021 Release 1 allows memory corruption via NULL-pointer dereference.
Severity
CWE
- CWE-476 - Null Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.samsungmobile.com/securityUpdate… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Samsung Mobile | Samsung Mobile Devices |
Affected:
P(9.0), Q(10.0), R(11.0) , < SMR Oct-2021 Release 1
(custom)
|
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CVE-2021-25462 (GCVE-0-2021-25462)
Vulnerability from cvelistv5 – Published: 2021-09-09 18:05 – Updated: 2024-08-03 20:03
VLAI
EPSS
VEX
Summary
NULL pointer dereference vulnerability in NPU driver prior to SMR Sep-2021 Release 1 allows attackers to cause memory corruption.
Severity
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.samsungmobile.com/securityUpdate… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Samsung Mobile | Samsung Mobile Devices |
Affected:
P(9.0), Q(10.0) , R(11.0) devices with Exynos chipsets , < SMR Sep-2021 Release 1
(custom)
|
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CVE-2021-25458 (GCVE-0-2021-25458)
Vulnerability from cvelistv5 – Published: 2021-09-09 18:04 – Updated: 2024-08-03 20:03
VLAI
EPSS
VEX
Summary
NULL pointer dereference vulnerability in ION driver prior to SMR Sep-2021 Release 1 allows attackers to cause memory corruption.
Severity
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.samsungmobile.com/securityUpdate… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Samsung Mobile | Samsung Mobile Devices |
Affected:
O(8.1), P(9.0), Q(10.0) , R(11.0) devices with Exynos chipsets , < SMR Sep-2021 Release 1
(custom)
|
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CVE-2021-23883 (GCVE-0-2021-23883)
Vulnerability from cvelistv5 – Published: 2021-02-10 09:25 – Updated: 2024-09-17 01:41
VLAI
EPSS
VEX
Title
Null Pointer Dereference vulnerability in McAfee Endpoint Security (ENS)
Summary
A Null Pointer Dereference vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2021 Update allows a local administrator to cause Windows to crash via a specific system call which is not handled correctly. This varies by machine and had partial protection prior to this update.
Severity
4 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kc.mcafee.com/corporate/index?page=conten… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| McAfee LLC | Endpoint Security (ENS) for Windows |
Affected:
10.7.x , < 10.7.0 February 2021
(custom)
|
Date Public
2021-02-10 00:00
Credits
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CVE-2021-23191 (GCVE-0-2021-23191)
Vulnerability from cvelistv5 – Published: 2022-03-02 22:28 – Updated: 2024-08-03 19:05
VLAI
EPSS
VEX
Summary
A security issue was found in htmldoc v1.9.12 and before. A NULL pointer dereference in the function image_load_jpeg() in image.cxx may result in denial of service.
Severity
No CVSS data available.
CWE
- CWE-476 - - NULL Pointer Dereference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/michaelrsweet/htmldoc/issues/415 | x_refsource_MISC |
| https://github.com/michaelrsweet/htmldoc/commit/3… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1967022 | x_refsource_MISC |
| https://ubuntu.com/security/CVE-2021-23191 | x_refsource_MISC |
Impacted products
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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.