PT-2023-17827 · Google · Android Kernel

Published 2023-03-24 · Updated 2023-03-29 · CVE-2023-21038

Positive Technologies (AI Summary)

CVSS v3.1

6.7

Medium

Base vector

AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Android kernel

Description The issue is related to a possible out of bounds write due to a use after free in the cs40l2x cp trigger queue show function of cs40l2x.c. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android kernel, consider restricting access to the cs40l2x cp trigger queue show function until a patch is available. As a temporary workaround, disabling the cs40l2x cp trigger queue show function may help minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use After Free

Memory Corruption

Weakness Enumeration

CWE-416

CWE-787

Related Identifiers

CVE-2023-21038

Affected Products

Android Kernel

References · 3

• https://source.android.com/security/bulletin/pixel/2023-03-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-21038 · Security Note
• https://t.me/cvenotify/47056 · Telegram Post