CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
CVE-2023-1382 (GCVE-0-2023-1382)
Vulnerability from cvelistv5 – Published: 2023-04-19 00:00 – Updated: 2025-03-19 15:37
VLAI
Summary
A data race flaw was found in the Linux kernel, between where con is allocated and con->sock is set. This issue leads to a NULL pointer dereference when accessing con->sock->sk in net/tipc/topsrv.c in the tipc protocol in the Linux kernel.
Severity
4.7 (Medium)
CWE
Assigner
References
1 reference
Impacted products
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CVE-2023-1583 (GCVE-0-2023-1583)
Vulnerability from cvelistv5 – Published: 2023-03-24 00:00 – Updated: 2025-02-20 18:50
VLAI
Summary
A NULL pointer dereference was found in io_file_bitmap_get in io_uring/filetable.c in the io_uring sub-component in the Linux Kernel. When fixed files are unregistered, some context information (file_alloc_{start,end} and alloc_hint) is not cleared. A subsequent request that has auto index selection enabled via IORING_FILE_INDEX_ALLOC can cause a NULL pointer dereference. An unprivileged user can use the flaw to cause a system crash.
Severity
5.5 (Medium)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Linux kernel |
Affected:
affected kernel 5.19, 6.0, 6.1, 6.2, 6.3
|
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CVE-2023-1587 (GCVE-0-2023-1587)
Vulnerability from cvelistv5 – Published: 2023-04-19 18:39 – Updated: 2025-02-05 16:15
VLAI
Summary
Avast and AVG Antivirus for Windows were susceptible to a NULL pointer dereference issue via RPC-interface. The issue was fixed with Avast and AVG Antivirus version 22.11
Severity
5.8 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| AVAST | Avast Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
|
| AVG | AVG Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
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CVE-2023-1628 (GCVE-0-2023-1628)
Vulnerability from cvelistv5 – Published: 2023-03-25 11:00 – Updated: 2025-02-19 20:29
VLAI
Title
Jianming Antivirus IoControlCode kvcore.sys null pointer dereference
Summary
A vulnerability classified as problematic has been found in Jianming Antivirus 16.2.2022.418. Affected is an unknown function in the library kvcore.sys of the component IoControlCode Handler. The manipulation leads to null pointer dereference. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. VDB-224010 is the identifier assigned to this vulnerability.
Severity
5.5 (Medium)
5.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.224010 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.224010 | signaturepermissions-required |
| https://github.com/zeze-zeze/WindowsKernelVuln/tr… | broken-link |
| https://drive.google.com/file/d/1Div9mElTdsluLrU2… | exploit |
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CVE-2023-1631 (GCVE-0-2023-1631)
Vulnerability from cvelistv5 – Published: 2023-03-25 12:00 – Updated: 2024-11-22 16:50
VLAI
Title
JiangMin Antivirus IOCTL kvcore.sys 0x222010 null pointer dereference
Summary
A vulnerability, which was classified as problematic, was found in JiangMin Antivirus 16.2.2022.418. This affects the function 0x222010 in the library kvcore.sys of the component IOCTL Handler. The manipulation leads to null pointer dereference. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The identifier VDB-224013 was assigned to this vulnerability.
Severity
5.5 (Medium)
5.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.224013 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.224013 | signaturepermissions-required |
| https://github.com/zeze-zeze/WindowsKernelVuln/tr… | related |
| https://drive.google.com/file/d/1Div9mElTdsluLrU2… | exploit |
Credits
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CVE-2023-1667 (GCVE-0-2023-1667)
Vulnerability from cvelistv5 – Published: 2023-05-26 00:00 – Updated: 2024-08-02 05:57
VLAI
Summary
A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to cause a denial of service.
Severity
No CVSS data available.
CWE
Assigner
References
6 references
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CVE-2023-20233 (GCVE-0-2023-20233)
Vulnerability from cvelistv5 – Published: 2023-09-13 16:40 – Updated: 2024-08-02 09:05
VLAI
Summary
A vulnerability in the Connectivity Fault Management (CFM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to incorrect processing of invalid continuity check messages (CCMs). An attacker could exploit this vulnerability by sending crafted CCMs to an affected device. A successful exploit could allow the attacker to cause the CFM service to crash when a user displays information about maintenance end points (MEPs) for peer MEPs on an affected device.
Severity
4.3 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco IOS XR Software |
Affected:
5.2.0
Affected: 5.2.1 Affected: 5.2.2 Affected: 5.2.4 Affected: 5.2.3 Affected: 5.2.5 Affected: 5.3.0 Affected: 5.3.1 Affected: 5.3.2 Affected: 5.3.3 Affected: 5.3.4 Affected: 6.1.1 Affected: 6.1.2 Affected: 6.1.3 Affected: 6.1.4 Affected: 6.2.1 Affected: 6.2.2 Affected: 6.2.3 Affected: 6.2.25 Affected: 6.3.2 Affected: 6.3.3 Affected: 6.3.15 Affected: 6.4.1 Affected: 6.4.2 Affected: 6.4.3 Affected: 6.5.1 Affected: 6.5.2 Affected: 6.6.2 Affected: 6.6.3 Affected: 6.6.25 Affected: 6.6.4 Affected: 7.0.1 Affected: 7.0.2 Affected: 7.1.1 Affected: 7.1.15 Affected: 7.1.2 Affected: 7.1.3 Affected: 6.7.1 Affected: 6.7.2 Affected: 6.7.3 Affected: 6.7.4 Affected: 7.2.1 Affected: 7.2.2 Affected: 7.3.1 Affected: 7.3.2 Affected: 7.3.3 Affected: 7.4.1 Affected: 7.4.2 Affected: 6.8.1 Affected: 6.8.2 Affected: 7.5.1 Affected: 7.5.3 Affected: 7.5.2 Affected: 7.6.1 Affected: 7.6.2 Affected: 7.7.1 Affected: 7.7.2 Affected: 6.9.1 Affected: 6.9.2 |
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CVE-2023-21547 (GCVE-0-2023-21547)
Vulnerability from cvelistv5 – Published: 2023-01-10 00:00 – Updated: 2025-01-01 00:35
VLAI
Title
Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability
Summary
Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability
Severity
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisory |
Impacted products
14 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.3887
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.0 , < 10.0.17763.3887
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.3887
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.3887
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.1487
(custom)
|
|
| Microsoft | Windows 10 Version 20H2 |
Affected:
10.0.0 , < 10.0.19042.2486
(custom)
|
|
| Microsoft | Windows 11 version 21H2 |
Affected:
10.0.0 , < 10.0.22000.1455
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19043.0 , < 10.0.19044.2486
(custom)
|
|
| Microsoft | Windows 11 version 22H2 |
Affected:
10.0.22621.0 , < 10.0.22621.1105
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.2486
(custom)
|
|
| Microsoft | Windows 10 Version 1507 |
Affected:
10.0.10240.0 , < 10.0.10240.19685
(custom)
|
|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.5648
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.5648
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.5648
(custom)
|
Date Public
2023-01-10 08:00
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CVE-2023-21586 (GCVE-0-2023-21586)
Vulnerability from cvelistv5 – Published: 2024-12-18 23:32 – Updated: 2024-12-19 16:39
VLAI
Title
Acrobat Reader | NULL Pointer Dereference (CWE-476)
Summary
Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (and earlier) are affected by a NULL Pointer Dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 22.003.20281
(semver)
|
Date Public
2023-01-10 17:00
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CVE-2023-21593 (GCVE-0-2023-21593)
Vulnerability from cvelistv5 – Published: 2023-02-17 00:00 – Updated: 2025-03-05 19:26
VLAI
Title
Adobe InDesign SVG file NULL Pointer Dereference Application denial-of-service
Summary
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Severity
5.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
Impacted products
Date Public
2023-02-14 00:00
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Mitigation ID: MIT-56
Phase: Implementation
Description:
- 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
Phase: Requirements
Description:
- Select a programming language that is not susceptible to these issues.
Mitigation
Phase: Implementation
Description:
- Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Phase: Architecture and Design
Description:
- 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
Phase: Implementation
Description:
- 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.