CVE-2016-6664

Publication date 13 December 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

mysqld_safe in Oracle MySQL through 5.5.51, 5.6.x through 5.6.32, and 5.7.x through 5.7.14; MariaDB; Percona Server before 5.5.51-38.2, 5.6.x before 5.6.32-78-1, and 5.7.x before 5.7.14-8; and Percona XtraDB Cluster before 5.5.41-37.0, 5.6.x before 5.6.32-25.17, and 5.7.x before 5.7.14-26.17, when using file-based logging, allows local users with access to the mysql account to gain root privileges via a symlink attack on error logs and possibly other files.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
mysql-5.7	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
mariadb-10.0	16.10 yakkety	Fixed 10.0.29-0ubuntu0.16.10.1
	16.04 LTS xenial	Fixed 10.0.29-0ubuntu0.16.04.1
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
mysql-5.5	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	15.04 vivid	Not in release
	14.04 LTS trusty	Fixed 5.5.52-0ubuntu0.14.04.1
	12.04 LTS precise	Fixed 5.5.52-0ubuntu0.12.04.1
mysql-5.6	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release

Notes

mdeslaur

This is a dupe of CVE-2016-5617

Severity score breakdown

Parameter	Value
Base score	7.0 · High
Attack vector	Local
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H