CVE-2023-52494

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-52494
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Add alignment check for event ring read pointer Though we do check the event ring read pointer by "is_valid_ring_ptr" to make sure it is in the buffer range, but there is another risk the pointer may be not aligned. Since we are expecting event ring elements are 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer could lead to multiple issues like DoS or ring buffer memory corruption. So add a alignment check for event ring read pointer.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551 Mailing List Patch
https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08 Mailing List Patch
https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010 Mailing List Patch
https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b Mailing List Patch
https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f Mailing List Patch
https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551 Mailing List Patch
https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08 Mailing List Patch
https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010 Mailing List Patch
https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b Mailing List Patch
https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f Mailing List 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:*:*:*:*:*:*:*:*
History

14 Feb 2025, 16:41

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551 - () https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551 - Mailing List, Patch
References () https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08 - () https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08 - Mailing List, Patch
References () https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010 - () https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010 - Mailing List, Patch
References () https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b - () https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b - Mailing List, Patch
References () https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f - () https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f - Mailing List, Patch
CWE CWE-787
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

21 Nov 2024, 08:39

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551 - () https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551 -
References () https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08 - () https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08 -
References () https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010 - () https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010 -
References () https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b - () https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b -
References () https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f - () https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bus: mhi: host: agregar verificación de alineación para el puntero de lectura del anillo de eventos. Aunque verificamos el puntero de lectura del anillo de eventos mediante "is_valid_ring_ptr" para asegurarnos de que esté en el rango del búfer, pero existe otro riesgo de que el puntero no esté alineado. Dado que esperamos que los elementos del anillo de eventos estén alineados con 128 bits (struct mhi_ring_element), un puntero de lectura no alineado podría provocar múltiples problemas como DoS o corrupción de la memoria del búfer del anillo. Por lo tanto, agregue una verificación de alineación para el puntero de lectura del anillo de eventos.

11 Mar 2024, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-03-11 18:15

Updated : 2025-02-14 16:41

NVD link : CVE-2023-52494

Mitre link : CVE-2023-52494

CVE.ORG link : CVE-2023-52494

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-787

Out-of-bounds Write