VulnerabilityModified
CVE-2021-4155
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.
MEDIUM 5.5EPSS 0.30%
Does this matter?
Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.30% probability · 22th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-131
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2021-4155Mitigation, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2034813Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=983d8e60f50806f90534cc5373d0ce867e5aaf79Mailing List, Patch, Vendor Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-4155Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/01/10/1Mailing List, Patch, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-4155Mitigation, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2034813Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=983d8e60f50806f90534cc5373d0ce867e5aaf79Mailing List, Patch, Vendor Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-4155Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/01/10/1Mailing List, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.