CWE-476

NULL Pointer Dereference

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

CVE-2023-31026 (GCVE-0-2023-31026)

Vulnerability from cvelistv5 – Published: 2023-11-02 18:56 – Updated: 2024-09-05 14:34
VLAI
Title
CVE
Summary
NVIDIA vGPU software for Windows and Linux contains a vulnerability in the Virtual GPU Manager (vGPU plugin), where a NULL-pointer dereference may lead to denial of service.
Severity
6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
nvidia vGPU driver and Cloud gaming driver Affected: All versions prior to and including 13.8, 15.3, 16.1 and all versions prior to and including September 2023 release
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CVE-2023-3106 (GCVE-0-2023-3106)

Vulnerability from cvelistv5 – Published: 2023-07-12 08:27 – Updated: 2025-11-20 17:30
VLAI
Title
Kernel: netlink socket crash (null pointer deref) in netlink_dump function
Summary
A NULL pointer dereference vulnerability was found in netlink_dump. This issue can occur when the Netlink socket receives the message(sendmsg) for the XFRM_MSG_GETSA, XFRM_MSG_GETPOLICY type message, and the DUMP flag is set and can cause a denial of service or possibly another unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is unlikely.
Severity
6.6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Date Public
2016-07-18 00:00
Show details on NVD website
To clipboard 

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CVE-2023-31129 (GCVE-0-2023-31129)

Vulnerability from cvelistv5 – Published: 2023-05-08 20:51 – Updated: 2025-01-29 14:30
VLAI
Title
Contiki-NG missing NULL pointer check in IPv6 neighbor discovery
Summary
The Contiki-NG operating system versions 4.8 and prior can be triggered to dereference a NULL pointer in the message handling code for IPv6 router solicitiations. Contiki-NG contains an implementation of IPv6 Neighbor Discovery (ND) in the module `os/net/ipv6/uip-nd6.c`. The ND protocol includes a message type called Router Solicitation (RS), which is used to locate routers and update their address information via the SLLAO (Source Link-Layer Address Option). If the indicated source address changes, a given neighbor entry is set to the STALE state. The message handler does not check for RS messages with an SLLAO that indicates a link-layer address change that a neighbor entry can actually be created for the indicated address. The resulting pointer is used without a check, leading to the dereference of a NULL pointer of type `uip_ds6_nbr_t`. The problem has been patched in the `develop` branch of Contiki-NG, and will be included in the upcoming 4.9 release. As a workaround, users can apply Contiki-NG pull request #2271 to patch the problem directly.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
contiki-ng contiki-ng Affected: <= 4.8
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Show details on NVD website
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CVE-2023-32008 (GCVE-0-2023-32008)

Vulnerability from cvelistv5 – Published: 2023-06-13 23:26 – Updated: 2025-01-01 01:44
VLAI
Title
Windows Resilient File System (ReFS) Remote Code Execution Vulnerability
Summary
Windows Resilient File System (ReFS) Remote Code Execution Vulnerability
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 1809 Affected: 10.0.17763.0 , < 10.0.17763.4499 (custom)
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Microsoft Windows 10 Version 1809 Affected: 10.0.0 , < 10.0.17763.4499 (custom)
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Microsoft Windows Server 2019 Affected: 10.0.17763.0 , < 10.0.17763.4499 (custom)
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Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.17763.0 , < 10.0.17763.4499 (custom)
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Microsoft Windows Server 2022 Affected: 10.0.20348.0 , < 10.0.20348.1787 (custom)
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Microsoft Windows 11 version 21H2 Affected: 10.0.0 , < 10.0.22000.2057 (custom)
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Microsoft Windows 10 Version 21H2 Affected: 10.0.19043.0 , < 10.0.19044.3086 (custom)
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Microsoft Windows 11 version 22H2 Affected: 10.0.22621.0 , < 10.0.22621.1848 (custom)
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Microsoft Windows 10 Version 22H2 Affected: 10.0.19045.0 , < 10.0.19045.3086 (custom)
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Microsoft Windows 10 Version 1507 Affected: 10.0.10240.0 , < 10.0.10240.19983 (custom)
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Microsoft Windows 10 Version 1607 Affected: 10.0.14393.0 , < 10.0.14393.5989 (custom)
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Microsoft Windows Server 2016 Affected: 10.0.14393.0 , < 10.0.14393.5989 (custom)
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Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.14393.0 , < 10.0.14393.5989 (custom)
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Date Public
2023-06-13 07:00
Show details on NVD website
To clipboard 

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CVE-2023-32084 (GCVE-0-2023-32084)

Vulnerability from cvelistv5 – Published: 2023-07-11 17:03 – Updated: 2025-01-01 01:52
VLAI
Title
HTTP.sys Denial of Service Vulnerability
Summary
HTTP.sys Denial of Service Vulnerability
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 1809 Affected: 10.0.17763.0 , < 10.0.17763.4645 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 1809 Affected: 10.0.0 , < 10.0.17763.4645 (custom)
Create a notification for this product.
Microsoft Windows Server 2019 Affected: 10.0.17763.0 , < 10.0.17763.4645 (custom)
Create a notification for this product.
Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.17763.0 , < 10.0.17763.4645 (custom)
Create a notification for this product.
Microsoft Windows Server 2022 Affected: 10.0.20348.0 , < 10.0.20348.1850 (custom)
Create a notification for this product.
Microsoft Windows 11 version 21H2 Affected: 10.0.0 , < 10.0.22000.2176 (custom)
Create a notification for this product.
Microsoft Windows 11 version 22H2 Affected: 10.0.22621.0 , < 10.0.22621.1992 (custom)
Create a notification for this product.
Date Public
2023-07-11 07:00
Show details on NVD website
To clipboard 

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CVE-2023-3212 (GCVE-0-2023-3212)

Vulnerability from cvelistv5 – Published: 2023-06-23 00:00 – Updated: 2024-08-02 06:48
VLAI
Summary
A NULL pointer dereference issue was found in the gfs2 file system in the Linux kernel. It occurs on corrupt gfs2 file systems when the evict code tries to reference the journal descriptor structure after it has been freed and set to NULL. A privileged local user could use this flaw to cause a kernel panic.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Linux kernel (gfs2 file system) Affected: Fixed in kernel 6.4-rc2
Show details on NVD website
To clipboard 

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CVE-2023-32171 (GCVE-0-2023-32171)

Vulnerability from cvelistv5 – Published: 2024-05-03 01:56 – Updated: 2024-08-02 15:10
VLAI
Title
Unified Automation UaGateway OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability
Summary
Unified Automation UaGateway OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation UaGateway. Authentication is required to exploit this vulnerability. The specific flaw exists within the ImportCsv method. A crafted XML payload can cause a null pointer dereference. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20495.
Severity
6.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
zdi
References
Impacted products
Vendor Product Version
Unified Automation UaGateway Affected: 1.5.12.482
Create a notification for this product.
Date Public
2023-05-31 23:59
Show details on NVD website
To clipboard 

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CVE-2023-3220 (GCVE-0-2023-3220)

Vulnerability from cvelistv5 – Published: 2023-06-20 00:00 – Updated: 2025-03-11 14:28
VLAI
Summary
An issue was discovered in the Linux kernel through 6.1-rc8. dpu_crtc_atomic_check in drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c lacks check of the return value of kzalloc() and will cause the NULL Pointer Dereference.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Linux kernel Affected: 6.2.0-rc2
Show details on NVD website
To clipboard 

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CVE-2023-32248 (GCVE-0-2023-32248)

Vulnerability from cvelistv5 – Published: 2023-07-24 15:19 – Updated: 2024-08-02 15:10
VLAI
Title
Tree connection null pointer dereference denial-of-service vulnerability
Summary
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Date Public
2023-05-04 00:00
Show details on NVD website
To clipboard 

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CVE-2023-32252 (GCVE-0-2023-32252)

Vulnerability from cvelistv5 – Published: 2023-07-24 15:19 – Updated: 2024-08-02 15:10
VLAI
Title
Session null pointer dereference denial-of-service vulnerability
Summary
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_LOGOFF commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Date Public
2023-05-04 00:00
Show details on NVD website
To clipboard 

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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.

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