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Red Hat Security Advisory 2024-1781-03

Red Hat Security Advisory 2024-1781-03
Posted Apr 11, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-1781-03 - An update for bind9.16 is now available for Red Hat Enterprise Linux 8.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-4408
SHA-256 | f9172f020815718f03fbbf2cb0e0498ec5c902cad67d0fbb67751f2f98e48c06

Red Hat Security Advisory 2024-1781-03

Change Mirror Download


The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1781.json

Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.

- Packet Storm Staff




====================================================================
Red Hat Security Advisory

Synopsis: Important: bind9.16 security update
Advisory ID: RHSA-2024:1781-03
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2024:1781
Issue date: 2024-04-11
Revision: 03
CVE Names: CVE-2023-4408
====================================================================

Summary:

An update for bind9.16 is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.




Description:

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.

Security Fix(es):

* bind9: Parsing large DNS messages may cause excessive CPU load (CVE-2023-4408)

* bind9: Querying RFC 1918 reverse zones may cause an assertion failure when “nxdomain-redirect” is enabled (CVE-2023-5517)

* bind9: Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution (CVE-2023-5679)

* bind9: Specific recursive query patterns may lead to an out-of-memory condition (CVE-2023-6516)

* bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)

* bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.


Solution:

https://access.redhat.com/articles/11258



CVEs:

CVE-2023-4408

References:

https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2263896
https://bugzilla.redhat.com/show_bug.cgi?id=2263897
https://bugzilla.redhat.com/show_bug.cgi?id=2263909
https://bugzilla.redhat.com/show_bug.cgi?id=2263911
https://bugzilla.redhat.com/show_bug.cgi?id=2263914
https://bugzilla.redhat.com/show_bug.cgi?id=2263917

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