CVE-2021-0920
MediumActively exploited (CISA KEV)
Description
In unix_scm_to_skb of af_unix.c, there is a possible use after free bug 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.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel
SeverityMedium
CVSS6.4
Exploit probability—
Product
Android Kernel
PublishedDec 15, 2021
First seenDec 15, 2021
Added to KEVMay 23, 2022
Weakness typeCWE-416Use after free
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Jun 13, 2022Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| google android | No range specified | — |
| linux linux_kernel | v ≤ 5.13, 5.14 | — |
| debian debian_linux | 9.0 | — |
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