PT-2021-13443 · Google · Android Kernel

Published 2021-12-15 · Updated 2021-12-20 · CVE-2021-1042

Positive Technologies (AI Summary)

CVSS v2.0

2.1

Low

Base vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Android kernel

Description The issue is related to a possible disclosure of freed kernel heap memory due to a use after free in the dsi panel debugfs read cmdset function of dsi panel.c. This could lead to local information disclosure, requiring System execution privileges for exploitation. User interaction is not needed for exploitation.

Recommendations For Android kernel, consider applying a patch to fix the use after free issue in the dsi panel debugfs read cmdset function as a permanent solution. As a temporary workaround, restrict access to the dsi panel debugfs read cmdset function to minimize the risk of exploitation.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2021-1042

Affected Products

Android Kernel

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2021-1042 · Security Note
• https://source.android.com/security/bulletin/pixel/2021-11-01 · Vendor Advisory