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CVE-2019-20917

MEDIUM
6.5
CVSS Score
Published: September 11, 2020 at 04:43 AM UTC
Updated: June 17, 2026 at 02:31 AM UTC
2 products affected across 2 vendorsDebian LinuxInspircd

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Severity
MEDIUM6.5
Exploit prediction
EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
10.09.0
Inspircd· Inspircd
95%
2.0 ≤ v < 2.0.283.0 ≤ v < 3.3.0
Affected range stops below 2.0.28, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.3.0, so it looks safe — our inference, not a vendor statement

References (5)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://docs.inspircd.org/security/2019-02/
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/inspircd/inspircd/commit/2cc35d8625b7ea5cbd1d1ebb116aff86c5280162
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/inspircd/inspircd/commit/8745660fcdac7c1b80c94cfc0ff60928cd4dd4b7
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/09/msg00015.html
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2020/dsa-4764

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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