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Vulnerability of BIND: assertion error via Large Zone Transfer

Synthesis of the vulnerability 

An attacker can force an assertion error via Large Zone Transfer of BIND, in order to trigger a denial of service.
Impacted products: BIND, openSUSE Leap, Solaris, SLES, Ubuntu.
Severity of this bulletin: 2/4.
Creation date: 18/06/2020.
Références of this threat: CERTFR-2020-AVI-382, CVE-2020-8618, openSUSE-SU-2020:1699-1, openSUSE-SU-2020:1701-1, SUSE-SU-2020:2914-1, USN-4399-1, VIGILANCE-VUL-32565.

Description of the vulnerability 

An attacker can force an assertion error via Large Zone Transfer of BIND, in order to trigger a denial of service.
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This computer threat announce impacts software or systems such as BIND, openSUSE Leap, Solaris, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer vulnerability is medium.

The trust level is of type confirmed by the editor, with an origin of intranet server.

An attacker with a expert ability can exploit this cybersecurity alert.

Solutions for this threat 

BIND: version 9.16.4.
The version 9.16.4 is fixed:
  https://www.isc.org/download/

openSUSE Leap 15.1: new bind packages.
New packages are available:
  openSUSE Leap 15.1: bind 9.16.6-lp151.11.9.1

openSUSE Leap 15.2: new bind packages.
New packages are available:
  openSUSE Leap 15.2: bind 9.16.6-lp152.14.3.1

Oracle Solaris: patch for third party software of July 2020 v2.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

SUSE LE 15: new bind packages.
New packages are available:
  SUSE LE 15 RTM: bind 9.16.6-12.32.1
  SUSE LE 15 SP1: bind 9.16.6-12.32.1
  SUSE LE 15 SP2: bind 9.16.6-12.32.1

Ubuntu: new bind9 packages.
New packages are available:
  Ubuntu 20.04 LTS: bind9 1:9.16.1-0ubuntu2.2
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