Security Advisory

CVE-2023-6534

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2023-12-13 08:12:14

Last updated 2025-02-13 17:26:26

Assigner freebsd

State PUBLISHED

Description

In versions of FreeBSD 14.0-RELEASE before 14-RELEASE-p2, FreeBSD 13.2-RELEASE before 13.2-RELEASE-p7 and FreeBSD 12.4-RELEASE before 12.4-RELEASE-p9, the pf(4) packet filter incorrectly validates TCP sequence numbers. This could allow a malicious actor to execute a denial-of-service attack against hosts behind the firewall.

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