Use-after-free in InspIRCd - CVE-2019-20918
Published: September 11, 2020 / Updated: September 20, 2020
Vulnerability identifier: #VU46822
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-20918
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in the silence module in InspIRCd. A remote authenticated user can send specially crafted request to the daemon and crash it.
Affected software
InspIRCd
How to mitigate CVE-2019-20918
Install updates from vendor's website.
InspIRCd - update to 3.1.0