Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2020.2977
bind9 security update
31 August 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: bind9
Publisher: Debian
Operating System: Debian GNU/Linux 9
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-8623 CVE-2020-8622
Reference: ESB-2020.2954
ESB-2020.2951
ESB-2020.2881
ESB-2020.2872
Original Bulletin:
https://www.debian.org/lts/security/2020/dla-2355
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Debian LTS Advisory DLA-2355-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Thorsten Alteholz
August 29, 2020 https://wiki.debian.org/LTS
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Package : bind9
Version : 1:9.10.3.dfsg.P4-12.3+deb9u7
CVE ID : CVE-2020-8622 CVE-2020-8623
Two issues have been found in bind9, an Internet Domain Name Server.
CVE-2020-8622
Crafted responses to TSIG-signed requests could lead to an assertion
failure, causing the server to exit. This could be done by malicious
server operators or guessing attackers.
CVE-2020-8623
An assertions failure, causing the server to exit, can be exploited
by a query for an RSA signed zone.
For Debian 9 stretch, these problems have been fixed in version
1:9.10.3.dfsg.P4-12.3+deb9u7.
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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