CVE-2021-4155
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-4155
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-4155.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-4155
- Downstream
- Related
- Published
- 2022-08-24T16:15:09Z
- Modified
- 2025-08-09T19:01:27Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
A data leak flaw was found in the way XFSIOCALLOCSP 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.
- References
-
- https://access.redhat.com/security/cve/CVE-2021-4155
- https://bugzilla.redhat.com/show_bug.cgi?id=2034813
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=983d8e60f50806f90534cc5373d0ce867e5aaf79
- https://security-tracker.debian.org/tracker/CVE-2021-4155
- https://www.openwall.com/lists/oss-security/2022/01/10/1