CVE-2018-5740

CVE Details

Release Date:	2019-01-16
Impact:	Important	What is this?

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.

See more information about CVE-2018-5740 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.5
Vector String:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version:	3.0
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (bind)	ELSA-2018-2571	2018-08-27
Oracle Linux version 7 (bind)	ELSA-2018-2570	2018-08-27
Oracle VM version 3.3 (bind)	OVMSA-2018-0252	2018-08-27
Oracle VM version 3.4 (bind)	OVMSA-2018-0252	2018-08-27