CVE-2018-5734 Information

Description

While handling a particular type of malformed packet BIND erroneously selects a SERVFAIL rcode instead of a FORMERR rcode. If the receiving view has the SERVFAIL cache feature enabled this can trigger an assertion failure in badcache.c when the request doesn’t contain all of the expected information. Affects BIND 9.10.5-S1 to 9.10.5-S4 9.10.6-S1 9.10.6-S2.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.securityfocus.com/bid/103189 http://www.securitytracker.com/id/1040438 https://kb.isc.org/docs/aa-01562 https://security.netapp.com/advisory/ntap-20180926-0005/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5