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Vulnerability of ISC BIND: assertion error via TCP

Synthesis of the vulnerability 

An attacker can force an assertion error via TCP of ISC BIND, in order to trigger a denial of service.
Impacted software: BIND, Slackware.
Severity of this computer vulnerability: 2/4.
Creation date: 26/11/2020.
Références of this announce: SSA:2020-330-01, VIGILANCE-VUL-33976.

Description of the vulnerability 

An attacker can force an assertion error via TCP of ISC BIND, in order to trigger a denial of service.
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This computer vulnerability impacts software or systems such as BIND, Slackware.

Our Vigil@nce team determined that the severity of this weakness bulletin is medium.

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

An attacker with a expert ability can exploit this weakness.

Solutions for this threat 

ISC BIND: version 9.16.9.
The version 9.16.9 is fixed:
  https://www.isc.org/download/

ISC BIND: version 9.17.7.
The version 9.17.7 is fixed:
  https://www.isc.org/download/

Slackware: new bind packages.
New packages are available:
  Slackware 14.0: bind 9.11.25-*-1_slack14.0
  Slackware 14.1: bind 9.11.25-*-1_slack14.1
  Slackware 14.2: bind 9.11.25-*-1_slack14.2
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