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CVE-2016-6664

HIGHCVSS 7/10EPSS 3.08%

Last modified

CVE-2016-6664 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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.. EPSS estimates a 3.08% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
3.08%

86.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OracleMysql>= 5.5.0, <= 5.5.51
OracleMysql>= 5.6.0, <= 5.6.32
OracleMysql>= 5.7.0, <= 5.7.14
MariadbMariadb>= 5.5.0, < 5.5.54
MariadbMariadb>= 10.0.0, < 10.0.29
MariadbMariadb>= 10.1.0, < 10.1.21
PerconaPercona Server>= 5.5, < 5.5.51-38.2
PerconaPercona Server>= 5.6, < 5.6.32-78.1
PerconaPercona Server>= 5.7, < 5.7.14-8
PerconaXtradb Cluster>= 5.5, < 5.5.41-37.0
PerconaXtradb Cluster>= 5.6, < 5.6.32-25.17
PerconaXtradb Cluster>= 5.7, < 5.7.14-26.17

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-6664?
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.
How severe is CVE-2016-6664?
CVE-2016-6664 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 3.08% probability of exploitation in the next 30 days.
How do I fix CVE-2016-6664?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST