Use-after-free in Irssi - CVE-2017-5194
Published: March 3, 2017 / Updated: July 18, 2020
Vulnerability identifier: #VU31439
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2017-5194
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Irssi
Irssi
Software vendor:
Irssi.org
Irssi.org
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing an invalid nick message. A remote attackers can cause a denial of service (crash).
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Update to version 0.8.21.