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Out-of-bounds Write The advisory has been revoked - it doesn't affect any version of package kernel-debug-devel-matched  (opens in a new tab)

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EPSS
0.34% (27th percentile)

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  • Snyk IDSNYK-CENTOS9-KERNELDEBUGDEVELMATCHED-2875581
  • published11 Dec 2021
  • disclosed13 Nov 2021
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Introduced: 13 Nov 2021

CVE-2021-4090  (opens in a new tab)
CWE-787  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel-matched package and not the kernel-debug-devel-matched package as distributed by Centos.

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.