CVE-2021-3772
Public on 2022-01-06
Modified on 2022-02-04
Description
A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.
Severity
Medium
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 | 2021-12-08 | ALAS2-2021-1727 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2022-01-21 | ALAS2KERNEL-5.10-2022-008 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2024-02-01 | ALAS2KERNEL-5.10-2024-049 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-01-20 | ALAS2KERNEL-5.4-2022-010 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | CVSSv2 | 5.8 | AV:N/AC:M/Au:N/C:N/I:P/A:P |
| NVD | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H |