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Date: Thu, 20 Aug 2020 11:10:07 -0800
From: Michael McNally <mcnally@....org>
To: oss-security@...ts.openwall.com,
"security-officer@....org" <security-officer@....org>
Subject: Five vulnerabilities disclosed in BIND (CVE-2020-8620, CVE-2020-8621,
CVE-2020-8622, CVE-2020-8623, and CVE-2020-8624)
On August 20, 2020, we (Internet Systems Consortium) have disclosed five
vulnerabilities in our BIND 9 software:
CVE-2020-8620: A specially crafted large TCP payload can trigger
an assertion failure in tcpdns.c
https://kb.isc.org/docs/cve-2020-8620
CVE-2020-8621: Attempting QNAME minimization after forwarding can
lead to an assertion failure in resolver.c
https://kb.isc.org/docs/cve-2020-8621
CVE-2020-8622: A truncated TSIG response can lead to an assertion failure
https://kb.isc.org/docs/cve-2020-8622
CVE-2020-8623: A flaw in native PKCS#11 code can lead to a remotely
triggerable assertion failure in pk11.c
https://kb.isc.org/docs/cve-2020-8623
CVE-2020-8624: update-policy rules of type "subdomain" are enforced incorrectly
https://kb.isc.org/docs/cve-2020-8624
New versions of BIND are available from https://www.isc.org/downloads
Operators and package maintainers who prefer to apply patches selectively can
find individual vulnerability-specific patches in the "patches" subdirectory
of the release directory for our two stable release branches (9.11 and 9.16)
https://downloads.isc.org/isc/bind9/9.11.22/patches
https://downloads.isc.org/isc/bind9/9.16.6/patches
With the public announcement of these vulnerabilities, the embargo
period is ended and any updated software packages that have been
prepared may be released.
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