CVE-2021-27365
Public on 2021-03-07
Modified on 2021-03-19
Description
A flaw was found in the Linux kernel. A heap buffer overflow in the iSCSI subsystem is triggered by setting an iSCSI string attribute to a value larger than one page and then trying to read it. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2021-03-18 | ALAS-2021-1487 | Fixed |
| Amazon Linux 2 - Core | kernel | 2021-03-18 | ALAS2-2021-1616 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-01-11 | ALAS2KERNEL-5.4-2022-001 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-4.14.214-160.339 | 2021-03-24 | ALAS2LIVEPATCH-2021-042 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-4.14.219-161.340 | 2021-03-24 | ALAS2LIVEPATCH-2021-043 | Fixed |
| Amazon Linux 2 - Livepatch Extra | kernel-livepatch-4.14.219-164.354 | 2021-03-24 | ALAS2LIVEPATCH-2021-044 | 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 | CVSSv2 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
| NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |