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CVE-2021-4090 An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| kernel | Versions not published | |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 | earliest → < 1.1.1 | 1.1.1 |
| kernel 5.11 | 5.11 → < 5.15.5 | 5.15.5 |
References
- bugzilla.redhat.com bugzilla.redhat.com
- lore.kernel.org lore.kernel.org
- security.netapp.com security.netapp.com
- git.kernel.org git.kernel.org
Timeline
- Published
- Last modified
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