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Debian LTS Advisory DLA-4364-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Andreas Henriksson
November 04, 2025 https://wiki.debian.org/LTS
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Package : bind9
Version : 1:9.16.50-1~deb11u4
CVE ID : CVE-2025-8677 CVE-2025-40778 CVE-2025-40780
Debian Bug :
Brief introduction
CVE-2025-8677
Resource exhaustion via malformed DNSKEY handling
CVE-2025-40778
Cache poisoning attacks with unsolicited RRs
CVE-2025-40780
Cache poisoning due to weak PRNG
For Debian 11 bullseye, these problems have been fixed in version
1:9.16.50-1~deb11u4.
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
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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