VULNERABILITY INTELLIGENCE

CVE-2021-4155

CVSS score5.5 MEDIUM

EPSS probability0.30%

CISA KEVNot currently listed

Published2022-08-24

Last modified2026-06-17

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

Description

A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.

Weakness classification

secalert@redhat.com: CWE-131
nvd@nist.gov: CWE-131

Primary references

secalert@redhat.com — Mitigation, Third Party Advisory
secalert@redhat.com — Issue Tracking, Third Party Advisory
secalert@redhat.com — Mailing List, Patch, Vendor Advisory
secalert@redhat.com — Third Party Advisory
secalert@redhat.com — Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Patch, Third Party Advisory