Security Information / 2023 / Security Information -- DSA-5439-1 bind9

Debian Security Advisory

DSA-5439-1 bind9 -- security update

Date Reported:

25 Jun 2023

Affected Packages:

bind9

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2023-2828, CVE-2023-2911.

More information:

Several vulnerabilities were discovered in BIND, a DNS server implementation.

• CVE-2023-2828

  Shoham Danino, Anat Bremler-Barr, Yehuda Afek and Yuval Shavitt discovered that a flaw in the cache-cleaning algorithm used in named can cause that named's configured cache size limit can be significantly exceeded, potentially resulting in denial of service.

• CVE-2023-2911

  It was discovered that a flaw in the handling of recursive-clients quota may result in denial of service (named daemon crash).

For the oldstable distribution (bullseye), these problems have been fixed in version 1:9.16.42-1~deb11u1.

For the stable distribution (bookworm), these problems have been fixed in version 1:9.18.16-1~deb12u1.

We recommend that you upgrade your bind9 packages.

For the detailed security status of bind9 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/bind9