CVE-2023-52448

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-52448
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump Syzkaller has reported a NULL pointer dereference when accessing rgd->rd_rgl in gfs2_rgrp_dump(). This can happen when creating rgd->rd_gl fails in read_rindex_entry(). Add a NULL pointer check in gfs2_rgrp_dump() to prevent that.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05 Patch
https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37 Patch
https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa Patch
https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a Patch
https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a Patch
https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178 Patch
https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

18 Mar 2024, 18:38

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: gfs2: Se corrigió la desreferencia del puntero NULL del kernel en gfs2_rgrp_dump Syzkaller ha informado una desreferencia del puntero NULL al acceder a rgd->rd_rgl en gfs2_rgrp_dump(). Esto puede suceder cuando la creación de rgd->rd_gl falla en read_rindex_entry(). Agregue una verificación de puntero NULL en gfs2_rgrp_dump() para evitarlo.
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-476
References () https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05 - () https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05 - Patch
References () https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37 - () https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37 - Patch
References () https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa - () https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa - Patch
References () https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a - () https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a - Patch
References () https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a - () https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a - Patch
References () https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178 - () https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178 - Patch
References () https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde - () https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde - Patch

22 Feb 2024, 17:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-02-22 17:15

Updated : 2024-03-18 18:38

NVD link : CVE-2023-52448

Mitre link : CVE-2023-52448

CVE.ORG link : CVE-2023-52448

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference