VULNERABILITY

Debian: CVE-2022-49561: linux -- security update

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Debian: CVE-2022-49561: linux -- security update

Severity
6
CVSS
(AV:L/AC:M/Au:S/C:N/I:C/A:C)
Published
02/27/2025
Created
03/10/2025
Added
02/27/2025
Modified
02/28/2025

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.

Solution(s)

  • debian-upgrade-linux

References

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