Use-after-free in Irssi - CVE-2017-10966
Published: July 10, 2017 / Updated: July 11, 2017
Vulnerability identifier: #VU7401
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2017-10966
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Irssi.org
Affected software:
Irssi
Irssi
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to use-after-free error when incorrectly using GHashTable interface while updating internal nick list. A remote unauthenticated attacker can create a specially crafted nick name and crash the affected server or execute arbitrary code.
Successful exploitation of the vulnerability may result in remote code execution.
How to mitigate CVE-2017-10966
Update to version 1.0.4.