Debian 11 DSA-5504-1 Critical: Bind9 DoS Vulnerabilities Fixed
debian
September 22, 2023
Several vulnerabilities were discovered in BIND, a DNS server implementation
Topics Covered
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 frequ...
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Severity
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Critical
Package: bind9
CVE ID: CVE-2023-3341 CVE-2023-4236
Topics Covered
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