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USN-6183-1: Bind vulnerabilities

21 June 2023

Several security issues were fixed in Bind.

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Releases

Packages

  • bind9 - Internet Domain Name Server

Details

Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered
that Bind incorrectly handled the cache size limit. A remote attacker could
possibly use this issue to consume memory, leading to a denial of service.
(CVE-2023-2828)

It was discovered that Bind incorrectly handled the recursive-clients
quota. A remote attacker could possibly use this issue to cause Bind to
crash, resulting in a denial of service. This issue only affected Ubuntu
22.04 LTS, Ubuntu 22.10, and Ubuntu 23.04. (CVE-2023-2911)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 23.04
Ubuntu 22.10
Ubuntu 22.04
Ubuntu 20.04

In general, a standard system update will make all the necessary changes.

Related notices

  • USN-6183-2: bind9-doc, libbind-export-dev, libbind9-140, libdns-export162, libisccc-export160, libirs141, libbind9-90, liblwres90, libisccc140, bind9, host, libisccc160, libisccc-export140-udeb, libisccc-export140, libisccfg140, libisccc90, libisccfg-export140, libirs-export160, libisc-export169, libisccfg160, libisc169, libbind-dev, libbind9-160, libisccfg90, libisc160, libisc95, libdns-export1100, lwresd, liblwres160, liblwres141, libdns1100, bind9utils, libirs160, bind9-host, libisccfg-export160, dnsutils, libisc-export160, libdns100, libdns162, libirs-export141