Out-of-bounds read in Irssi - CVE-2017-5356

 

Out-of-bounds read in Irssi - CVE-2017-5356

Published: March 3, 2017 / Updated: July 18, 2020


Vulnerability identifier: #VU31442
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-5356
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.

Irssi before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a string containing a formatting sequence (%[) without a closing bracket (]).


Affected software

Irssi
irssi (Alpine package)
irssi
Fedora

How to mitigate CVE-2017-5356

Install update from vendor's website.

Irssi - update to 0.8.21
irssi (Alpine package) - update to 0.8.21-r0
irssi - addressed in versions 0.8.21-1.el5, 0.8.21-1.fc24, 0.8.21-1.fc25

External References

Related Security Bulletins