CVE-2023-52462

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-52462
In the Linux kernel, the following vulnerability has been resolved: bpf: fix check for attempt to corrupt spilled pointer When register is spilled onto a stack as a 1/2/4-byte register, we set slot_type[BPF_REG_SIZE - 1] (plus potentially few more below it, depending on actual spill size). So to check if some stack slot has spilled register we need to consult slot_type[7], not slot_type[0]. To avoid the need to remember and double-check this in the future, just use is_spilled_reg() helper.

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 HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66ef Patch
https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036 Patch
https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf Patch
https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174 Patch
https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae Patch
https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104 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:*:*:*:*:*:*:*:*
History

17 Apr 2024, 20:06

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: bpf: revisión de corrección para intentar dañar el puntero derramado Cuando el registro se derrama en una pila como un registro de 1/2/4 bytes, configuramos slot_type[BPF_REG_SIZE - 1] (más potencialmente algunos más debajo de él, dependiendo del tamaño real del derrame). Entonces, para verificar si alguna ranura de la pila se ha desbordado, debemos consultar slot_type[7], no slot_type[0]. Para evitar la necesidad de recordar y volver a verificar esto en el futuro, simplemente use el asistente is_spilled_reg().
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
CWE NVD-CWE-noinfo
References () https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66ef - () https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66ef - Patch
References () https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036 - () https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036 - Patch
References () https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf - () https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf - Patch
References () https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174 - () https://git.kernel.org/stable/c/8dc15b0670594543c356567a1a45b0182ec63174 - Patch
References () https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae - () https://git.kernel.org/stable/c/ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae - Patch
References () https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104 - () https://git.kernel.org/stable/c/fc3e3c50a0a4cac1463967c110686189e4a59104 - Patch

23 Feb 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-02-23 15:15

Updated : 2024-04-17 20:06

NVD link : CVE-2023-52462

Mitre link : CVE-2023-52462

CVE.ORG link : CVE-2023-52462

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo