Alpaquita LinuxStreamSecurity Advisory
Search Cve

CVE-2021-4090

Published: February 18, 2022Last modified: November 8, 2023

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.

Severity score breakdown

ParameterValue
Base score7.1
Attack VectorLOCAL
Attack complexityLOW
Privileges requiredLOW
User interactionNONE
ScopeUNCHANGED
ConfidentialityHIGH
Integrity impactHIGH
Availability impactNONE
VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Status

ProductReleasePackageStatus
Alpaquita LinuxStreamlinux-ltsUnknown (6.1.33-r0)

References

ON THIS PAGE