CVE-2021-39686 — Race Condition in Google Android

CWE-362 — Race ConditionCWE-366 — Race Condition within a ThreadCWE-269 — Improper Privilege Management7 documents6 sources
Severity
7.0HIGHNVD
EPSS
0.0%
top 94.21%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Linux KernelDebian LinuxGoogle Android
Timeline
PublishedMar 16
Latest updateMar 17

Description

In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-200688826References: Upstream kernel

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages3 packages

▶Debianlinux/linux_kernel< 5.15.15-1+2
▶debiandebian/linux< linux 5.15.15-1 (bookworm)

Patches

Patch: source.android.com ↗Patch: source.android.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-9c4x-gw9f-7x8h: In several functions of binder↗2022-03-17
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OSV
CVE-2021-39686: In several functions of binder↗2022-03-16
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OSV
CVE-2021-39686: In several functions of binder↗2022-03-01
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📋Vendor Advisories

3
Red Hat
kernel: race condition in the Android binder driver could lead to incorrect security checks↗2022-03-07
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Android
CVE-2021-39686: Binder↗2022-03-01
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Debian
CVE-2021-39686: linux - In several functions of binder.c, there is a possible way to represent the wrong...↗2021
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CVE-2021-39686 — Race Condition in Google Android | cvebase