PT-2021-8041 · Google · Android Kernel

Published 2021-04-12 · Updated 2023-08-08 · CVE-2022-20153

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Android kernel

Description The issue is related to a possible use-after-free in the rcu cblist dequeue function of rcu segcblist.c. This could lead to local escalation of privilege in the kernel, requiring System execution privileges. No user interaction is needed for exploitation.

Recommendations For Android kernel, consider applying the fix from the upstream kernel to resolve the issue. As a temporary workaround, restrict access to the kernel to minimize the risk of exploitation.

Fix

Improper Locking

Use After Free

Weakness Enumeration

CWE-667

CWE-416

Related Identifiers

BDU:2024-04165

CVE-2022-20153

OESA-2022-1838

Affected Products

Android Kernel

References · 13

• https://source.android.com/security/bulletin/pixel/2022-06-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-20153 · Security Note
• https://ubuntu.com/security/CVE-2022-20153 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-20153 · Security Note
• https://bdu.fstec.ru/vul/2024-04165 · Security Note
• https://osv.dev/vulnerability/OESA-2022-1838 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-20153 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-20153 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-20153 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-20153 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20153 · Note
• https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1838 · Note
• https://git.kernel.org/linus/f70865db5ff35f5ed0c7e9ef63e7cca3d4947f04 · Note