PT-2021-22687 · Google · Android Kernel

Published 2021-12-15 · Updated 2021-12-20 · CVE-2021-39642

Positive Technologies (AI Summary)

CVSS v2.0

4.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Android kernel (affected versions not specified)

Description: In the synchronous process io entries function of lwis ioctl.c, there is a possible out of bounds write due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2021-39642

Affected Products

Android Kernel

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-39642 · Security Note
• https://source.android.com/security/bulletin/pixel/2021-12-01 · Vendor Advisory
• https://t.me/cibsecurity/34084 · Telegram Post
• https://t.me/cvenotify/24661 · Telegram Post