HIGH 7.1 Microsoft
CVE-2021-4090
An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing sanity may lead to a write beyond bmval[bmlen-1] in nfsd4_decode_bitmap4 in fs/nfsd/nfs4xdr.c. In this flaw a local attacker with user privilege may gain access to out-of-bounds memory leading to a system integrity and confidentiality threat.
Microsoft Security Update 2022-Feb: An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing sanity may lead to a write beyond bmval[bmlen-1] in nfsd4_decode_bitmap4 in fs/nfsd/nfs4xdr.c. In this flaw a local attacker with user privilege may gain access to out-of-bounds memory leading to a system integrity and confidentiality threat.
Affected Products
- cm1 kernel 5.10.102.1-1 on CBL Mariner 1.0
- cbl2 kernel 5.15.26.1-1 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-4090
- https://nvd.nist.gov/vuln/detail/CVE-2021-4090
This high severity vulnerability with a CVSS score of 7.1 was published on 2022-02-08 via Microsoft. Affected: cm1 kernel 5.10.102.1-1 on CBL Mariner 1.0, cbl2 kernel 5.15.26.1-1 on CBL Mariner 2.0.
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