Vulnerability CVE-2019-20918
Published: 2020-09-11

Description:
An issue was discovered in InspIRCd 3 before 3.1.0. The silence module contains a use after free vulnerability. This vulnerability can be used for remote crashing of an InspIRCd server by any user able to fully connect to a server.

Type:

CWE-416

 (Use After Free)

CVSS2 => (AV:N/AC:L/Au:S/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Inspircd -> Inspircd 

 References:
https://docs.inspircd.org/security/2019-01/
https://github.com/inspircd/inspircd/commit/7b47de3c194f239c5fea09a0e49696c9af017d51
https://github.com/inspircd/inspircd/commit/bcd65de1ec4bb71591ae417fee649d7ecd37cd57
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