Use-after-free in Irssi - CVE-2019-15717
Published: August 30, 2019
Vulnerability identifier: #VU20476
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-15717
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 responses from IRC server with a double CAP. A remote attacker can trick the victim to connect to a malicious IRC server, trigger use-after-free error and execute arbitrary code on the target system..
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install updates from vendor's website.