CVE-2023-52893

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-52893
In the Linux kernel, the following vulnerability has been resolved: gsmi: fix null-deref in gsmi_get_variable We can get EFI variables without fetching the attribute, so we must allow for that in gsmi. commit 859748255b43 ("efi: pstore: Omit efivars caching EFI varstore access layer") added a new get_variable call with attr=NULL, which triggers panic in gsmi.

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/32313c11bdc8a02c577abaf865be3664ab30410a Patch
https://git.kernel.org/stable/c/6646d769fdb0ce4318ef9afd127f8526d1ca8393 Patch
https://git.kernel.org/stable/c/a769b05eeed7accc4019a1ed9799dd72067f1ce8 Patch
https://git.kernel.org/stable/c/ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd Patch
https://git.kernel.org/stable/c/eb0421d90f916dffe96b4c049ddf01c0c50620d2 Patch
https://git.kernel.org/stable/c/ee5763ef829bd923033510de6d1df7c73f085e4b Patch
https://git.kernel.org/stable/c/ffef77794fb5f1245c3249b86342bad2299accb5 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
History

11 Sep 2024, 16:24

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/32313c11bdc8a02c577abaf865be3664ab30410a - () https://git.kernel.org/stable/c/32313c11bdc8a02c577abaf865be3664ab30410a - Patch
References () https://git.kernel.org/stable/c/6646d769fdb0ce4318ef9afd127f8526d1ca8393 - () https://git.kernel.org/stable/c/6646d769fdb0ce4318ef9afd127f8526d1ca8393 - Patch
References () https://git.kernel.org/stable/c/a769b05eeed7accc4019a1ed9799dd72067f1ce8 - () https://git.kernel.org/stable/c/a769b05eeed7accc4019a1ed9799dd72067f1ce8 - Patch
References () https://git.kernel.org/stable/c/ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd - () https://git.kernel.org/stable/c/ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd - Patch
References () https://git.kernel.org/stable/c/eb0421d90f916dffe96b4c049ddf01c0c50620d2 - () https://git.kernel.org/stable/c/eb0421d90f916dffe96b4c049ddf01c0c50620d2 - Patch
References () https://git.kernel.org/stable/c/ee5763ef829bd923033510de6d1df7c73f085e4b - () https://git.kernel.org/stable/c/ee5763ef829bd923033510de6d1df7c73f085e4b - Patch
References () https://git.kernel.org/stable/c/ffef77794fb5f1245c3249b86342bad2299accb5 - () https://git.kernel.org/stable/c/ffef77794fb5f1245c3249b86342bad2299accb5 - Patch
CPE cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: gsmi: corrige null-deref en gsmi_get_variable Podemos obtener variables EFI sin recuperar el atributo, por lo que debemos permitir eso en gsmi. commit 859748255b43 ("efi: pstore: Omit efivars caching EFI varstore access Layer") agregó una nueva llamada get_variable con attr=NULL, lo que desencadena pánico en gsmi.
CWE CWE-476
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5

21 Aug 2024, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-08-21 07:15

Updated : 2024-09-11 16:24

NVD link : CVE-2023-52893

Mitre link : CVE-2023-52893

CVE.ORG link : CVE-2023-52893

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference