CVE-2019-20917

Description

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.24% Top 25%
Vendor Advisory debian.org Vendor Advisory inspircd.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://docs.inspircd.org/security/2019-02/ vendor advisory
https://github.com/inspircd/inspircd/commit/2cc35d8625b7ea5cbd1d1ebb116aff86c5280162 third party advisory patch
https://github.com/inspircd/inspircd/commit/8745660fcdac7c1b80c94cfc0ff60928cd4dd4b7 third party advisory patch
https://www.debian.org/security/2020/dsa-4764 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00015.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2019-20917?
CVE-2019-20917 has been scored as a medium severity vulnerability.
How to fix CVE-2019-20917?
To fix CVE-2019-20917, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-20917 being actively exploited in the wild?
It is possible that CVE-2019-20917 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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