Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2020.1771
New releases of BIND are available: 9.11.19, 9.14.12, and 9.16.3
20 May 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: BIND
Publisher: ISC
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-8617 CVE-2020-8616
Original Bulletin:
https://lists.isc.org/pipermail/bind-announce/2020-May/001156.html
https://kb.isc.org/docs/cve-2020-8616
https://kb.isc.org/docs/cve-2020-8617
https://kb.isc.org/docs/cve-2020-8617-faq-and-supplemental-information
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Three new releases of BIND are available for download from
https://www.isc.org/downloads
BIND 9.11.19 and BIND 9.16.3 are the May 2020 releases of the two
currently supported stable branches of BIND. In addition to
bug fixes and feature improvements, these releases also contain
security fixes for two "high" severity security vulnerabilities:
CVE-2020-8616: BIND does not sufficiently limit the number
of fetches performed when processing referrals
CVE-2020-8617: A logic error in code which checks TSIG
validity can be used to trigger an assertion failure in tsig.c
BIND 9.14.12 is the final planned release in the now End-of-Life (EOL)
9.14 branch. It contains only the fixes for the two security
vulnerabilities and is the last 9.14 release that we intend to release.
If you are running 9.14 please use the time provided to plan your
migration to a currently supported release branch.
Release notes for the individual releases can be found at:
9.11.19: https://downloads.isc.org/isc/bind9/9.11.19/RELEASE-NOTES-bind-9.11.19.html
9.14.12: https://downloads.isc.org/isc/bind9/9.14.12/RELEASE-NOTES-bind-9.14.12.html
9.16.3: https://downloads.isc.org/isc/bind9/9.16.3/RELEASE-NOTES-bind-9.16.3.html
ISC have also released patch diffs for the two security vulnerabilities,
for those who wish to selectively patch the two CVE issues without
adopting all of the other changes that are in the latest maintenance
releases.
Patch diffs can be found in:
9.11 branch: https://downloads.isc.org/isc/bind9/9.11.19/patches
9.14 branch: https://downloads.isc.org/isc/bind9/9.14.12/patches
9.16 branch: https://downloads.isc.org/isc/bind9/9.16.3/patches
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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
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NOTE: This is only the original release of the security bulletin. It may
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Contact information for the authors of the original document is included
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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