[ubuntu/focal-security] bind9 1:9.16.1-0ubuntu2.3 (Accepted)

[Marc Deslauriers]

bind9 (1:9.16.1-0ubuntu2.3) focal-security; urgency=medium

  * SECURITY UPDATE: A specially crafted large TCP payload can trigger an
    assertion failure
    - debian/patches/CVE-2020-8620.patch: add extra checks to
      lib/isc/netmgr/netmgr-int.h, lib/isc/netmgr/netmgr.c,
      lib/isc/netmgr/tcp.c, lib/isc/netmgr/udp.c.
    - CVE-2020-8620
  * SECURITY UPDATE: Attempting QNAME minimization after forwarding can
    lead to an assertion failure
    - debian/patches/CVE-2020-8621.patch: disable QNAME minimization in
      lib/dns/resolver.c.
    - CVE-2020-8621
  * SECURITY UPDATE: A truncated TSIG response can lead to an assertion
    failure
    - debian/patches/CVE-2020-8622.patch: move code in lib/dns/message.c.
    - CVE-2020-8622
  * SECURITY UPDATE: A flaw in native PKCS#11 code can lead to a remotely
    triggerable assertion failure
    - debian/patches/CVE-2020-8623.patch: add extra checks in
      lib/dns/pkcs11rsa_link.c, lib/isc/include/pk11/internal.h,
      lib/isc/pk11.c.
    - CVE-2020-8623
  * SECURITY UPDATE: update-policy rules of type subdomain were enforced
    incorrectly
    - debian/patches/CVE-2020-8624.patch: add extra check in
      bin/named/zoneconf.c.
    - CVE-2020-8624

Date: 2020-08-18 13:35:21.166612+00:00
Changed-By: Marc Deslauriers <marc.deslauriers at canonical.com>
https://launchpad.net/ubuntu/+source/bind9/1:9.16.1-0ubuntu2.3
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