Vulnerability identifier: #VU6954
Vulnerability risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
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 NULL pointer dereference. A remote attacker can return a specially crafted DCC message without a source nick or host value and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
Mitigation
Update to version 1.0.3.
Vulnerable software versions
Irssi: 0.8.0 - 1.0.2
External links
http://irssi.org/security/irssi_sa_2017_06.txt
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.