Main Vulnerability Database Vulnerabilities #VU32044

Out-of-bounds read in Irssi - CVE-2017-15722

Published: October 22, 2017 / Updated: July 28, 2020

Vulnerability identifier: #VU32044

CSH Severity: Medium

CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-15722

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

In certain cases, Irssi before 1.0.5 may fail to verify that a Safe channel ID is long enough, causing reads beyond the end of the string.

Irssi
Arch Linux
Slackware Linux
irssi (Alpine package)

Install update from vendor's website.

Irssi - update to 1.0.5
irssi (Alpine package) - addressed in versions 1.0.5-r0, 1.0.6-r0