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ISC BIND: Attempting QNAME minimization after forwarding can lead to an assertion failure in resolver.c (CVE-2020-8621)

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ISC BIND: Attempting QNAME minimization after forwarding can lead to an assertion failure in resolver.c (CVE-2020-8621)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
08/21/2020
Created
09/09/2020
Added
09/08/2020
Modified
09/08/2020

Description

In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.

Solution(s)

  • upgrade-isc-bind-latest

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