Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Audit Plug-in). Supported versions that are affected are 5.7.17 and earlier. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. External References: http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html#AppendixMSQL
The information shared by Oracle does not make it clear if this CVE is for an issue in the NULL Audit plugin that is part of the MySQL Community edition, or whether it applies to the MySQL Enterprise Audit feature of the MySQL Enterprise version. It seems this may be for this issue corrected in the null_audit: For the null_audit plugin, setting the null_audit_event_record system variable improperly could cause a server exit. This variable should be set only from within the null_audit plugin, so it is now read only. (Bug #24493829, Bug #82670) https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-18.html That matches these fixes: https://github.com/mysql/mysql-server/commit/b8c4bfdd7aef1738112f8cf7a7eb79605d00a889 https://github.com/mysql/mysql-server/commit/914590c737dab0e3e7d9f023aef4c704a443ed7f
This issue has been addressed in the following products: Red Hat Software Collections for Red Hat Enterprise Linux 6 Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7 Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS Via RHSA-2017:2886 https://access.redhat.com/errata/RHSA-2017:2886