PT-2023-2006 · Google · Android Kernel

Published 2023-02-06 · Updated 2025-03-21 · CVE-2023-20937

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/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 use after free in several functions of the Android Linux kernel, which could lead to local escalation of privilege without needing additional execution privileges. User interaction is not required for exploitation.

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

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2023-01630

CVE-2023-20937

Affected Products

Android Kernel

References · 22

• 🔥 http://packetstormsecurity.com/files/171239/Android-GKI-Kernels-Contain-Broken-Non-Upstream-Speculative-Page-Faults-MM-Code.html · Exploit
• https://ubuntu.com/security/CVE-2023-20937 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-20937 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-01630 · Security Note
• https://source.android.com/security/bulletin/2023-02-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-20937 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-20937 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-20937 · Security Note
• https://source.android.com/docs/security/bulletin/2023-02-01?hl=ru · Note
• https://android.googlesource.com/kernel/common/+/5844c8e7aaa946341f0d30441adc8f2cd97efbfc · Note
• https://packetstormsecurity.com/files/171239/Android-GKI-Kernels-Contain-Broken-Non-Upstream-Speculative-Page-Faults-MM-Code.html · Note
• https://android.googlesource.com/kernel/common/+/533a88fed7d0107eff64d723d853e9a2c4a1053c · Note
• https://android.googlesource.com/kernel/common/+/ca96bd7bf10e62eccc583726be502f219ab02c1e · Note
• https://t.me/cibsecurity/59121 · Telegram Post
• https://t.me/cvenotify/115714 · Telegram Post