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[SECURITY] [DLA 2955-2] bind9 regression update

Debian LTS Advisory DLA-2955-2                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Markus Koschany
March 19, 2022                                https://wiki.debian.org/LTS

Package        : bind9
Version        : 1:9.10.3.dfsg.P4-12.3+deb9u12
CVE ID         : CVE-2021-25220
Debian Bug     : 1007945

The security update announced as DLA 2955-1 caused a regression in named due to
an incomplete fix for CVE-2021-25220 when the Forwarders option was configured.
Updated bind9 packages are now available to correct this issue.

For Debian 9 stretch, this problem has been fixed in version

We recommend that you upgrade your bind9 packages.

For the detailed security status of bind9 please refer to
its security tracker page at:

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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