FreeBSD The Power to Serve

FreeBSD 13.5-RELEASE Errata

Abstract

This document lists errata items for FreeBSD 13.5-RELEASE, containing significant information discovered after the release or too late in the release cycle to be otherwise included in the release documentation. This information includes security advisories, as well as news relating to the software or documentation that could affect its operation or usability. An up-to-date version of this document should always be consulted before installing this version of FreeBSD.

Introduction

This errata document contains "late-breaking news" about FreeBSD 13.5-RELEASE. Before installing this version, it is important to consult this document to learn about any post-release discoveries or problems that may already have been found and fixed.

Any version of this errata document actually distributed with the release (for example, on a CDROM distribution) will be out of date by definition, but other copies are kept updated on the Internet and should be consulted as the "current errata" for this release. These other copies of the errata are located at https://www.FreeBSD.org/releases/, plus any sites which keep up-to-date mirrors of this location.

Source and binary snapshots of FreeBSD 13-STABLE also contain up-to-date copies of this document (as of the time of the snapshot).

For a list of all FreeBSD CERT security advisories, see https://www.FreeBSD.org/security/.

Security Advisories

Advisory Date Topic

FreeBSD-SA-25:06.xz

2 July 2025

Use-after-free in multi-threaded xz decoder

FreeBSD-SA-25:07.libarchive

8 August 2025

Integer overflow in libarchive leading to double free

FreeBSD-SA-25:08.openssl

30 September 2025

Multiple vulnerabilities in OpenSSL

FreeBSD-SA-25:09.netinet

22 October 2025

SO_REUSEPORT_LB breaks connect(2) for UDP sockets

FreeBSD-SA-25:10.unbound

26 November 2025

Cache poison in local-unbound service

FreeBSD-SA-25:11.ipfw

16 December 2025

ipfw denial of service

FreeBSD-SA-25:12.rtsold

16 December 2025

Remote code execution via ND6 Router Advertisements

FreeBSD-SA-26:01.openssl

27 January 2026

Multiple vulnerabilities in OpenSSL

FreeBSD-SA-26:02.jail

27 January 2026

Jail escape by a privileged user via nullfs

FreeBSD-SA-26:04.jail

24 February 2026

Jail chroot escape via fd exchange with a different jail

FreeBSD-SA-26:05.route

24 February 2026

Local DoS and possible privilege escalation via routing sockets

FreeBSD-SA-26:08.rpcsec_gss

26 March 2026

Remote code execution via RPCSEC_GSS packet validation

FreeBSD-SA-26:10.tty

21 April 2026

Kernel use-after-free bug in the TIOCNOTTY handler

FreeBSD-SA-26:11.amd64

21 April 2026

Missing large page handling in pmap_pkru_update_range()

FreeBSD-SA-26:12.dhclient

29 April 2026

Remote code execution via malicious DHCP options

FreeBSD-SA-26:13.exec

29 April 2026

Local privilege escalation via execve()

FreeBSD-SA-26:14.pf

29 April 2026

pf can overflow the stack parsing crafted SCTP packets

FreeBSD-SA-26:15.dhclient

29 April 2026

Remotely triggerable out-of-bounds heap write in dhclient

FreeBSD-SA-26:16.libnv

29 April 2026

Stack overflow via select() file descriptor set overflow

FreeBSD-SA-26:17.libnv

29 April 2026

Heap overflow in libnv

Errata Notices

Errata Date Topic

FreeBSD-EN-25:04.tzdata

10 April 2025

Timezone database information update

FreeBSD-EN-25:05.expat

10 April 2025

Update expat to 2.7.1

FreeBSD-EN-25:08.caroot

10 April 2025

Root certificate bundle update

FreeBSD-EN-25:09.libc

2 July 2025

Dynamically-loaded C++ libraries crashing at exit

FreeBSD-EN-25:10.zfs

2 July 2025

Corruption in ZFS replication streams from encrypted datasets

FreeBSD-EN-25:11.ena

2 July 2025

ena resets and kernel panic on Nitro v4 or newer instances

FreeBSD-EN-25:15.arm64

16 September 2025

arm64 syscall(2) allows unprivileged user to panic kernel

FreeBSD-EN-25:18.freebsd-update

30 September 2025

freebsd-update(8) installs libraries in incorrect order

FreeBSD-EN-26:03.vm

27 January 2026

The page fault handler fails to zero memory

FreeBSD-EN-26:05.vm

21 April 2026

The page fault handler fails to zero memory

FreeBSD-EN-26:09.tzdata

29 April 2026

Timezone database information update

FreeBSD-EN-26:11.dhclient

1 May 2026

dhclient(8) lease validation is too strict

FreeBSD-EN-26:12.freebsd-update

1 May 2026

Source inconsistency between freebsd-update, EN/SAs, and git

Open Issues

No open issues.

Late-Breaking News

No late-breaking news.


Last modified on: May 2, 2026 by Philip Paeps