Headline

CVE-2019-20917: Security Advisory 2019-01 - InspIRCd Documentation

An issue was discovered in InspIRCd 2 before 2.0.28 and 3 before 3.3.0. The mysql module contains a NULL pointer dereference when built against mariadb-connector-c 3.0.5 or newer. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.

4 years ago

CVE

Open in Source

#sql #vulnerability #auth

Summary

The mysql module before v3.3.0 contains a null pointer dereference when built against mariadb-connector-c v3.0.5 or newer. When combined with the sqlauth or sqloper modules this vulnerability can be used to remotely crash an InspIRCd server by any user able to connect to a server.

Affected Versions

This vulnerability is present in the following releases:

All versions of v2 before v2.0.28
All versions of v3 before v3.3.0

Recommended Action

This vulnerability is fixed in versions 2.0.28 and 3.3.0. It is strongly recommended that all affected users upgrade.

If upgrading is not possible then the mysql module should be unloaded.

History

2019-08-19 — A crash vulnerability was reported to the InspIRCd team.
2019-08-20 — The cause of the crash was identified by the InspIRCd team and a fix was prepared.
2019-08-23 — InspIRCd v2.0.28 and v3.3.0 was released with a fix for the crash vulnerability.

References