vulnerability
Ubuntu: (CVE-2021-39686): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:N/C:C/I:C/A:C) | Mar 16, 2022 | Nov 19, 2024 | Sep 1, 2025 |
Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Mar 16, 2022
Added
Nov 19, 2024
Modified
Sep 1, 2025
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
Solutions
ubuntu-upgrade-linuxubuntu-upgrade-linux-awsubuntu-upgrade-linux-aws-5-4ubuntu-upgrade-linux-aws-fipsubuntu-upgrade-linux-azureubuntu-upgrade-linux-azure-5-4ubuntu-upgrade-linux-azure-fdeubuntu-upgrade-linux-azure-fipsubuntu-upgrade-linux-bluefieldubuntu-upgrade-linux-fipsubuntu-upgrade-linux-gcpubuntu-upgrade-linux-gcp-5-4ubuntu-upgrade-linux-gcp-fipsubuntu-upgrade-linux-gkeubuntu-upgrade-linux-gke-5-4ubuntu-upgrade-linux-gkeopubuntu-upgrade-linux-gkeop-5-4ubuntu-upgrade-linux-hwe-5-4ubuntu-upgrade-linux-ibmubuntu-upgrade-linux-ibm-5-4ubuntu-upgrade-linux-kvmubuntu-upgrade-linux-oem-5-14ubuntu-upgrade-linux-oracleubuntu-upgrade-linux-oracle-5-4ubuntu-upgrade-linux-raspiubuntu-upgrade-linux-raspi-5-4
References
- CVE-2021-39686
- https://attackerkb.com/topics/CVE-2021-39686
- CWE-362
- URL-https://android.googlesource.com/kernel/common/+/11db2de0af2a
- URL-https://android.googlesource.com/kernel/common/+/3af7a2f61023
- URL-https://android.googlesource.com/kernel/common/+/a4eacf3227bd
- URL-https://android.googlesource.com/kernel/common/+/d49297739550
- URL-https://source.android.com/security/bulletin/2022-03-01
- URL-https://www.cve.org/CVERecord?id=CVE-2021-39686
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