Medium severity6.5NVD Advisory· Published Sep 11, 2020· Updated Jun 17, 2026

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Inspircd/Inspircd2 versions
cpe:2.3:a:inspircd:inspircd:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:inspircd:inspircd:*:*:*:*:*:*:*:*range: >=2.0,<2.0.28
- (no CPE)range: <2.0.28, <3.3.0
Debian/linux2 versions
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
InspIRCd/InspIRCddescription
Mariadb Connector C/mariadb-connector-cllm-create
Range: >=3.0.5

Patches

Vulnerability mechanics

References

github.com/inspircd/inspircd/commit/2cc35d8625b7ea5cbd1d1ebb116aff86c5280162nvdPatchThird Party Advisory
github.com/inspircd/inspircd/commit/8745660fcdac7c1b80c94cfc0ff60928cd4dd4b7nvdPatchThird Party Advisory
docs.inspircd.org/security/2019-02/nvdVendor Advisory
lists.debian.org/debian-lts-announce/2020/09/msg00015.htmlnvdMailing ListThird Party Advisory
www.debian.org/security/2020/dsa-4764nvdThird Party Advisory

News mentions

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cvss	0.423
epss	0.002
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000