[SECURITY] [DLA 3139-1] knot-resolver security update
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Debian LTS Advisory DLA-3139-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Chris Lamb
October 07, 2022 https://wiki.debian.org/LTS
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Package : knot-resolver
Version : 3.2.1-3+deb10u1
CVE ID : CVE-2022-40188
It was discovered that there was a potential remote denial-of-service
vulnerability in the knot-resolver DNSSEC-validating DNS resolver.
Remote attackers could have caused a denial of service via CPU
consumption by exploiting algorithmic complexity: during an attack,
an authoritative server would return large nameserver or address
sets.
For Debian 10 buster, this problem has been fixed in version
3.2.1-3+deb10u1.
We recommend that you upgrade your knot-resolver packages.
For the detailed security status of knot-resolver please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/knot-resolver
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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