USN-6633-1: Bind vulnerabilities
13 February 2024
Several security issues were fixed in Bind.
Releases
Packages
- bind9 - Internet Domain Name Server
Details
Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered
that Bind incorrectly handled parsing large DNS messages. A remote attacker
could possibly use this issue to cause Bind to consume resources, leading
to a denial of service. (CVE-2023-4408)
Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered
that Bind icorrectly handled validating DNSSEC messages. A remote attacker
could possibly use this issue to cause Bind to consume resources, leading
to a denial of service. (CVE-2023-50387)
It was discovered that Bind incorrectly handled preparing an NSEC3 closest
encloser proof. A remote attacker could possibly use this issue to cause
Bind to consume resources, leading to a denial of service. (CVE-2023-50868)
It was discovered that Bind incorrectly handled reverse zone queries when
nxdomain-redirect is enabled. A remote attacker could possibly use this
issue to cause Bind to crash, leading to a denial of service.
(CVE-2023-5517)
It was discovered that Bind incorrectly handled recursive resolution when
both DNS64 and serve-stable were enabled. A remote attacker could possibly
use this issue to cause Bind to crash, leading to a denial of service.
(CVE-2023-5679)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 23.10
Ubuntu 22.04
In general, a standard system update will make all the necessary changes.
Related notices
- USN-6642-1: bind9-dnsutils, dnsutils, bind9utils, bind9-libs, bind9, bind9-host, bind9-doc, bind9-utils
- USN-6657-1: dnsmasq-utils, dnsmasq-base, dnsmasq, dnsmasq-base-lua
- USN-6665-1: python3-unbound, unbound, libunbound8, libunbound-dev, unbound-host, unbound-anchor, python-unbound
- USN-6723-1: libisccc-export140, dnsutils, liblwres90, libbind-export-dev, libisc160, libbind9-90, libisccfg90, libisccc160, bind9, libbind9-160, libisc-export160, libisccc-export160, liblwres160, libdns100, libisccfg140, libirs-export160, bind9-doc, libbind-dev, libdns-export1100, libirs-export141, libisccc-export140-udeb, libbind9-140, libirs141, libisccc140, bind9-host, libisc-export169, libdns162, libisc169, libisccfg-export160, libdns-export162, libisccc90, liblwres141, host, libdns1100, bind9utils, libirs160, libisccfg160, libisccfg-export140, libisc95, lwresd
- USN-6657-2: dnsmasq-utils, dnsmasq-base, dnsmasq, dnsmasq-base-lua