CVE-2022-27666
Public on 2022-03-23
Modified on 2022-05-12
Description
A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2022-04-18 | ALAS-2022-1581 | Fixed |
| Amazon Linux 2 - Core | kernel | 2022-04-18 | ALAS2-2022-1774 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2022-04-05 | ALAS2KERNEL-5.10-2022-012 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-04-18 | ALAS2KERNEL-5.4-2022-025 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | CVSSv2 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |