CVE-2021-41073
Public on 2021-09-19
Modified on 2022-01-10
Description
A flaw was found in loop_rw_iter in fs/io_uring.c in the Linux kernel. This problem gives the ability to a local user with a normal user privilege to free a user-defined kernel space buffer.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2022-01-20 | ALAS2KERNEL-5.10-2022-006 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.50-44.131 | 2021-11-03 | ALAS2LIVEPATCH-2021-065 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.50-44.132 | 2021-11-03 | ALAS2LIVEPATCH-2021-066 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.59-52.142 | 2021-11-03 | ALAS2LIVEPATCH-2021-067 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-5.10.62-55.141 | 2021-11-03 | ALAS2LIVEPATCH-2021-068 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | CVSSv2 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
| NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |