CVE Vulnerability

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. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=983d8e60f50806f90534cc5373d0ce867e5aaf79 Mailing List Patch
https://access.redhat.com/security/cve/CVE-2021-4155 Mitigation Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/01/10/1 Mailing List Patch
https://security-tracker.debian.org/tracker/CVE-2021-4155 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2034813 Issue Tracking Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Information

Published : 2022-08-24 04:15

Updated : 2022-08-29 01:39

NVD link : CVE-2021-4155

Mitre link : CVE-2021-4155

Products Affected
No products.
CWE
CWE-131

Incorrect Calculation of Buffer Size