-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2024-fae88b73eb 2024-03-04 01:26:36.607429 --------------------------------------------------------------------------------
Name : bind Product : Fedora 38 Version : 9.18.24 Release : 1.fc38 URL : https://www.isc.org/downloads/bind/ Summary : The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) server Description : BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly.
-------------------------------------------------------------------------------- Update Information:
Security Fixes Validating DNS messages containing a lot of DNSSEC signatures could cause excessive CPU load, leading to a denial-of-service condition. This has been fixed. (CVE-2023-50387) ISC would like to thank Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner from the German National Research Center for Applied Cybersecurity ATHENE for bringing this vulnerability to our attention. [GL #4424] Parsing DNS messages with many different names could cause excessive CPU load. This has been fixed. (CVE-2023-4408) ISC would like to thank Shoham Danino from Reichman University, Anat Bremler- Barr from Tel-Aviv University, Yehuda Afek from Tel-Aviv University, and Yuval Shavitt from Tel-Aviv University for bringing this vulnerability to our attention. [GL #4234] Specific queries could cause named to crash with an assertion failure when nxdomain-redirect was enabled. This has been fixed. (CVE-2023-5517) [GL #4281] A bad interaction between DNS64 and serve-stale could cause named to crash with an assertion failure, when both of these features were enabled. This has been fixed. (CVE-2023-5679) [GL #4334] Under certain circumstances, the DNS-over-TLS client code incorrectly attempted to process more than one DNS message at a time, which could cause named to crash with an assertion failure. This has been fixed. [GL #4487] Full Release notes Related blog post BIND 9 Security Release and Multi-Vendor Vulnerability Handling, CVE-2023-50387 and CVE-2023-50868 -------------------------------------------------------------------------------- ChangeLog:
* Thu Feb 15 2024 Petr Men����k pemensik@redhat.com - 32:9.18.24-1 - Update to 9.18.24 (#2264032) * Tue Jan 16 2024 Petr Men����k pemensik@redhat.com - 32:9.18.20-2 - Update changed b.root-servers.net address in hints (#2253460) -------------------------------------------------------------------------------- References:
[ 1 ] Bug #2240253 - unit test rbtdb_test reliably fails on i686 builds https://bugzilla.redhat.com/show_bug.cgi?id=2240253 [ 2 ] Bug #2253460 - bind: Update of b.root-servers.net https://bugzilla.redhat.com/show_bug.cgi?id=2253460 [ 3 ] Bug #2264032 - bind-9.18.24 is available https://bugzilla.redhat.com/show_bug.cgi?id=2264032 [ 4 ] Bug #2264062 - CVE-2023-4408 bind: bind9: Parsing large DNS messages may cause excessive CPU load [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2264062 [ 5 ] Bug #2264063 - CVE-2023-5517 bind: bind9: Querying RFC 1918 reverse zones may cause an assertion failure when ���nxdomain-redirect��� is enabled [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2264063 [ 6 ] Bug #2264064 - CVE-2023-5679 bind: bind9: Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2264064 [ 7 ] Bug #2264065 - CVE-2023-6516 bind: bind9: Specific recursive query patterns may lead to an out-of-memory condition [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2264065 [ 8 ] Bug #2264067 - CVE-2023-50387 bind: bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2264067 [ 9 ] Bug #2264068 - CVE-2023-50868 bind: bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2264068 --------------------------------------------------------------------------------
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2024-fae88b73eb' 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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