CVE Vulnerabilities

CVE-2023-20849

Use After Free

Published: Sep 04, 2023 | Modified: Nov 21, 2024
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

In imgsys_cmdq, there is a possible use after free due to a missing valid range checking. This could lead to local escalation of privilege with System execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS07340433; Issue ID: ALPS07340350.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Name Vendor Start Version End Version
Yocto Linuxfoundation 4.0 (including) 4.0 (including)
Iot_yocto Mediatek 23.0 (including) 23.0 (including)
Android Google 11.0 (including) 11.0 (including)
Android Google 12.0 (including) 12.0 (including)
Linux_kernel Linux 6.1 (including) 6.1 (including)

Potential Mitigations

References