Vulnerability identifier: #VU11474

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-5207

CWE-ID: CWE-126

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Irssi
Client/Desktop applications / Messaging software

Vendor: Irssi.org

Description
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to data access beyond the end of the string when using an incomplete variable argument. A remote attacker can trigger buffer over-read and gain access to potentially sensitive information.

Mitigation
Update to version 1.0.6.

Vulnerable software versions

Irssi: 1.0.0 - 1.0.5

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External links
http://irssi.org/security/irssi_sa_2018_01.txt

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Q & A

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.