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CVE-2023-6534

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CVE-2023-6534

Published: Dec 13, 2023

Modified: Feb 13, 2025

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.

VendorProductVersions

FreeBSD

FreeBSD

affected
14.0-RELEASE - < p2
affected
13.2-RELEASE - < p7
affected
12.4-RELEASE - < p9

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