- -------------------------------------------------------------------------
Debian Security Advisory DSA-5504-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
September 22, 2023                    https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : bind9
CVE ID         : CVE-2023-3341 CVE-2023-4236
Debian Bug     : 1052416 1052417

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

CVE-2023-3341

    A stack exhaustion flaw was discovered in the control channel code
    which may result in denial of service (named daemon crash).

CVE-2023-4236

    Robert Story discovered that a flaw in the networking code handling
    DNS-over-TLS queries could cause named to terminate unexpectedly due
    to an assertion failure, resulting in denial of service when under
    high DNS-over-TLS query load conditions.

For the oldstable distribution (bullseye), these problems have been fixed
in version 1:9.16.44-1~deb11u1. The oldstable distribution (bullseye) is
only affected by CVE-2023-3341.

For the stable distribution (bookworm), these problems have been fixed in
version 1:9.18.19-1~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/source-package/bind9

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

Debian: DSA-5504-1: bind9 security update

September 22, 2023
Several vulnerabilities were discovered in BIND, a DNS server implementation

Summary

CVE-2023-3341

A stack exhaustion flaw was discovered in the control channel code
which may result in denial of service (named daemon crash).

CVE-2023-4236

Robert Story discovered that a flaw in the networking code handling
DNS-over-TLS queries could cause named to terminate unexpectedly due
to an assertion failure, resulting in denial of service when under
high DNS-over-TLS query load conditions.

For the oldstable distribution (bullseye), these problems have been fixed
in version 1:9.16.44-1~deb11u1. The oldstable distribution (bullseye) is
only affected by CVE-2023-3341.

For the stable distribution (bookworm), these problems have been fixed in
version 1:9.18.19-1~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/source-package/bind9

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

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

Related News

23.Tablet Connections Esm H320
2 - 3 min read
The release of Ubuntu 24.04 LTS , also known as Noble Numbat, brings various security enhancements and exciting new features . These improvements
4.Lock AbstractDigital Esm H320
2 - 3 min read
Tails 6.2 is a new Linux distribution release that expands its multilingual support and improves security features. The distribution is a
19.Laptop Bed Esm H320
2 - 3 min read
AlmaLinux 9.4 beta has been released and provides compelling reasons to consider it for desktop usage. While AlmaLinux is primarily known as a
32.Lock Code Circular Esm H320
2 - 3 min read
Linux admins and security practitioners face significant challenges in keeping their Linux systems secure amidst the constant threat of kernel bugs.
1.Penguin Landscape Esm H320
2 - 3 min read
A significant security threat, known as the Spectre v2 exploit, has been observed targeting Linux systems running on modern Intel processors. Let's
10.FingerPrint Locks Esm H320
2 - 3 min read
The recent release of I2P 2.5.0 , an anonymous P2P network that protects against online censorship, surveillance, and monitoring, has brought a slew
24.Key Code Esm H320
2 - 3 min read
The Akira ransomware group has extorted approximately $42 million from over 250 victims since January 1, 2024. The group initially focused on
5.ShakingHands Esm H320
2 - 3 min read
At The Linux Foundation's Open Source Summit North America , Linus Torvalds, the creator of Linux, discussed various topics related to Linux
Sign Up