CVE-2021-4155
Public on 2022-01-24
Modified on 2022-03-07
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.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2022-02-04 | ALAS-2022-1563 | Fixed |
| Amazon Linux 1 | kernel | 2023-02-17 | ALAS-2023-1688 | Fixed |
| Amazon Linux 2 - Core | kernel | 2022-02-04 | ALAS2-2022-1749 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2022-01-26 | ALAS2KERNEL-5.10-2022-009 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-01-26 | ALAS2KERNEL-5.4-2022-021 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-4.14.256-197.484 | 2022-03-01 | ALAS2LIVEPATCH-2022-075 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.82-83.359 | 2022-03-07 | ALAS2LIVEPATCH-2022-076 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | CVSSv3 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |