NULL pointer dereference in Irssi - CVE-2017-5193
Published: March 3, 2017 / Updated: July 18, 2020
Vulnerability identifier: #VU31438
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-5193
CWE-ID: CWE-476
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 perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a message without a nick.
Remediation
Update to version 0.8.21.