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CVE-2021-4090

UNKNOWN
Published 2022-02-18T00:00:00
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No CVSS data available

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-rwxr-f4qj-9x36

Advisory Details

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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-4090
WEB https://bugzilla.redhat.com/show_bug.cgi?id=2025101
WEB https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit@klimt.1015granger.net
WEB https://security.netapp.com/advisory/ntap-20220318-0010

Advisory provided by GitHub Security Advisory Database. Published: February 19, 2022, Modified: March 19, 2022

References

https://bugzilla.redhat.com/show_bug.cgi?id=2025101
https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit%40klimt.1015granger.net/
https://security.netapp.com/advisory/ntap-20220318-0010/
Published: 2022-02-18T00:00:00
Last Modified: 2024-08-03T17:16:03.753Z
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