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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
See what this means
CVSS v3 Base Score
5.9
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2023-02-17 00:02 ALAS-2023-1688
Amazon Linux 1 kernel 2022-02-04 23:24 ALAS-2022-1563
Amazon Linux 2 - Core kernel 2021-12-08 02:23 ALAS2-2021-1727
Amazon Linux 2 - Core kernel 2025-01-30 22:56 ALAS2-2025-2752
Amazon Linux 2 - Kernel-5.10 Extra kernel 2024-02-01 20:10 ALAS2KERNEL-5.10-2024-049
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-01-21 00:04 ALAS2KERNEL-5.10-2022-008
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-01-20 19:13 ALAS2KERNEL-5.4-2022-010
Amazon Linux 2 - Kernel-5.4 Extra kernel 2025-01-31 05:43 ALAS2KERNEL-5.4-2025-093

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