CVE-2021-4090

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Source

https://nvd.nist.gov/vuln/detail/CVE-2021-4090

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-4090.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-4090

Related

Published

2022-02-18T18:15:10Z

Modified

2024-09-18T01:00:20Z

Severity

7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

[none]

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 nfsd4decodebitmap4 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

Affected packages

Debian:12 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.15.5-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.15.5-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}