#VU32047 Out-of-bounds read in Irssi - CVE-2017-15228

Published: 2017-10-22 | Updated: 2020-07-28

Vulnerability identifier: #VU32047

Vulnerability risk: Medium

CVSSv4.0: 6.6 [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/E:U/U:Green]

CVE-ID: CVE-2017-15228

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Irssi
Client/Desktop applications / Messaging software

Vendor: Irssi.org

Description

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

Irssi before 1.0.5, when installing themes with unterminated colour formatting sequences, may access data beyond the end of the string.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Irssi: 1.0.0 - 1.0.4

External links
https://openwall.com/lists/oss-security/2017/10/22/4
https://irssi.org/security/irssi_sa_2017_10.txt
https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html
https://www.debian.org/security/2017/dsa-4016

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.