CVE-2021-3772

medium

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.

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=32f8807a48ae55be0e76880cfe8607a18b5bb0df

https://bugzilla.redhat.com/show_bug.cgi?id=2000694

https://github.com/torvalds/linux/commit/32f8807a48ae55be0e76880cfe8607a18b5bb0df

https://ubuntu.com/security/CVE-2021-3772

https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html

https://www.debian.org/security/2022/dsa-5096

Details

Source: MITRE

Published: 2022-03-02

Updated: 2022-05-01

Type: CWE-354

Risk Information

CVSS v2

Base Score: 5.8

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:P

Impact Score: 4.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Impact Score: 4.2

Exploitability Score: 2.2

Severity: MEDIUM