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CVE-2016-0747

Published: 26 January 2016

The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution.

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
nginx
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty
Released (1.4.6-1ubuntu3.4)
upstream
Released (1.9.10-1, 1.9.10, 1.8.1)
vivid Ignored
(end of life)
wily
Released (1.9.3-1ubuntu1.1)
xenial
Released (1.9.10-0ubuntu1)
yakkety
Released (1.9.10-0ubuntu1)
zesty
Released (1.9.10-0ubuntu1)
Patches:
upstream: https://github.com/nginx/nginx/commit/fe89d99796d42b86816e17d9c87ab16964768024
upstream: https://github.com/nginx/nginx/commit/4016e6b1da4fbf9c45963211791be124cd7ffb8f

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L