Vulnerability identifier: #VU10606

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-7050

CWE-ID: CWE-476

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 cause DoS condition on the target system.

The weakness exists due to a NULL pointer dereference when an "empty" nick has been observed. A remote attacker can use a broken ircd or control over the ircde and cause the service to crash.

Mitigation
Update to version 1.0.7, 1.1.1.

Vulnerable software versions

Irssi: 1.0.0 - 1.1.0

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External links
http://irssi.org/security/irssi_sa_2018_02.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.