HIGH 7.8 Microsoft
CVE-2021-3847
An unauthorized access to the execution of the setuid file with capabilities flaw in the Linux kernel OverlayFS subsystem was found in the way user copying a capable file from a nosuid mount into another mount. A local user could use this flaw to escalate their privileges on the system.
Microsoft Security Update 2022-Apr: An unauthorized access to the execution of the setuid file with capabilities flaw in the Linux kernel OverlayFS subsystem was found in the way user copying a capable file from a nosuid mount into another mount. A local user could use this flaw to escalate their privileges on the system.
Affected Products
- cm1 kernel 5.10.189.1-1 on CBL Mariner 1.0
- cbl2 kernel 5.15.160.1-1 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-3847
- https://nvd.nist.gov/vuln/detail/CVE-2021-3847
This high severity vulnerability with a CVSS score of 7.8 was published on 2022-04-12 via Microsoft. Affected: cm1 kernel 5.10.189.1-1 on CBL Mariner 1.0, cbl2 kernel 5.15.160.1-1 on CBL Mariner 2.0.
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