CVE-2022-4269

medium

Description

A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.

References

https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html

https://lore.kernel.org/netdev/33dc43f587ec1388ba456b4915c75f02a8aae226.1663945716.git.dcaratti%40redhat.com/

https://security.netapp.com/advisory/ntap-20230929-0001/

https://www.debian.org/security/2023/dsa-5480

Details

Source: Mitre, NVD

Published: 2022-12-05

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium