-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-8b43ea2f82 2026-05-02 02:10:24.452831+00:00 --------------------------------------------------------------------------------
Name : krb5 Product : Fedora 44 Version : 1.22.2 Release : 4.fc44 URL : https://web.mit.edu/kerberos/www/ Summary : The Kerberos network authentication system Description : Kerberos V5 is a trusted-third-party network authentication system, which can improve your network's security by eliminating the insecure practice of sending passwords over the network in unencrypted form.
-------------------------------------------------------------------------------- Update Information:
Fix NegoEx parsing vulnerabilities (CVE-2026-40355, CVE-2026-40356) Add upstream patches to build against openssl 4.0 Make configure.ac work with autoconf 2.73 -------------------------------------------------------------------------------- ChangeLog:
* Tue Apr 28 2026 Julien Rische jrische@redhat.com - 1.22.2-4 - Fix NegoEx parsing vulnerabilities (CVE-2026-40355, CVE-2026-40356) - resolves: rhbz#2463398 - resolves: rhbz#2463395 - Add upstream patches to build against openssl 4.0 - Make configure.ac work with autoconf 2.73 -------------------------------------------------------------------------------- References:
[ 1 ] Bug #2463395 - CVE-2026-40356 krb5: MIT Kerberos 5 (krb5): Denial of Service via integer underflow and out-of-bounds read [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2463395 [ 2 ] Bug #2463398 - CVE-2026-40355 krb5: MIT Kerberos 5: Denial of Service via NULL pointer dereference in NegoEx mechanism [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2463398 --------------------------------------------------------------------------------
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-8b43ea2f82' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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