GHSA-rwxr-f4qj-9x36HighCVSS 7.1
An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2021-4090
- https://bugzilla.redhat.com/show_bug.cgi?id=2025101
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit%40klimt.1015granger.net
- https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit@klimt.1015granger.net
- https://security.netapp.com/advisory/ntap-20220318-0010
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c0019b7db1d7ac62c711cda6b357a659d46428fe
- https://github.com/advisories/GHSA-rwxr-f4qj-9x36