CVEvulnerability
CVE-2021-4155
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-08-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-131
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.
Affected configurations
• linux linux kernel (< 5.16)
Related
Weakness · CWE (1)
- CWE-131 Incorrect Calculation of Buffer Size weakness
References
- https://access.redhat.com/security/cve/CVE-2021-4155 Mitigation, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2034813 Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=983d8e60f50806f90534cc5373d0ce867e5aaf79 Mailing List, Patch, Vendor Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-4155 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/01/10/1 Mailing List, Patch, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-4155 Mitigation, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2034813 Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=983d8e60f50806f90534cc5373d0ce867e5aaf79 Mailing List, Patch, Vendor Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-4155 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/01/10/1 Mailing List, Patch, Third Party Advisory