CVE-2018-5740 Information

Description

\deny-answer-aliases\ is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks a potential method of circumventing the security model used by client browsers. However a defect in this feature makes it easy when the feature is in use to experience an assertion failure in name.c. Affects BIND 9.7.0-9.8.8 9.9.0-9.9.13 9.10.0-9.10.8 9.11.0-9.11.4 9.12.0-9.12.2 9.13.0-9.13.2.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.html http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.html http://www.securityfocus.com/bid/105055 http://www.securitytracker.com/id/1041436 https://access.redhat.com/errata/RHSA-2018:2570 https://access.redhat.com/errata/RHSA-2018:2571 https://kb.isc.org/docs/aa-01639 https://lists.debian.org/debian-lts-announce/2018/08/msg00033.html https://security.gentoo.org/glsa/201903-13 https://security.netapp.com/advisory/ntap-20180926-0003/ https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03927en_us https://usn.ubuntu.com/3769-1/ https://usn.ubuntu.com/3769-2/

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