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, bind9-host, bind9-utils, bind9, bind9utils, dnsutils, bind9-libs, bind9-doc
- USN-6657-1: dnsmasq-base-lua, dnsmasq-base, dnsmasq, dnsmasq-utils
- USN-6665-1: libunbound-dev, unbound-anchor, unbound-host, python-unbound, unbound, libunbound8, python3-unbound
- USN-6723-1: liblwres90, libisccc-export160, libisccfg-export140, libisccfg160, libisccc160, libisccc140, libbind9-90, libisc-export160, bind9utils, libisccc-export140, libirs160, libisccc-export140-udeb, liblwres141, libdns162, libisccfg-export160, libbind9-140, libisccfg90, libisc-export169, bind9-host, libbind-export-dev, bind9, libisc160, libisccfg140, host, libdns1100, libisc95, libdns-export1100, libdns-export162, liblwres160, libisccc90, libirs-export141, lwresd, dnsutils, libirs-export160, bind9-doc, libirs141, libbind9-160, libdns100, libbind-dev, libisc169
- USN-6657-2: dnsmasq-base-lua, dnsmasq-base, dnsmasq, dnsmasq-utils