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CVE-2019-20917

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Date: September 11, 2020

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.

Language: C++

Severity Score

Related Resources (9)

https://people.canonical.com/~ubuntu-security/cve/CVE-2019-20917
https://docs.inspircd.org/security/2019-02/
https://lists.debian.org/debian-lts-announce/2020/09/msg00015.html
https://github.com/inspircd/inspircd/commit/8745660fcdac7c1b80c94cfc0ff60928cd4dd4b7
https://github.com/inspircd/inspircd/commit/2cc35d8625b7ea5cbd1d1ebb116aff86c5280162
https://www.debian.org/security/2020/dsa-4764
https://security-tracker.debian.org/tracker/CVE-2019-20917
https://nvd.nist.gov/vuln/detail/CVE-2019-20917
https://www.mend.io/vulnerability-database/CVE-2019-20917

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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