CVE-2023-6534

TCP spoofing vulnerability in pf(4)

State: Published
Severity: Not scored
Published: Dec 13, 2023
Updated: Feb 13, 2025
Reserved: Dec 5, 2023

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
FreeBSDFreeBSD	14.0-RELEASE to before p2Affected 13.2-RELEASE to before p7Affected 12.4-RELEASE to before p9Affected

References

https://security.freebsd.org/advisories/FreeBSD-SA-23:17.pf.ascvendor-advisory
https://security.netapp.com/advisory/ntap-20240112-0007/

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