#VU25599 Buffer overflow in WeeChat - CVE-2020-8955
Published: February 26, 2020
Vulnerability identifier: #VU25599
Vulnerability risk: High
CVSSv4.0: 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-2020-8955
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
WeeChat
WeeChat
Software vendor:
WeeChat.org
WeeChat.org
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing IRC messages in irc_mode_channel_update() function in plugins/irc/irc-mode.c in WeeChat. A remote attacker can send a specially crafted IRC message 324 (channel mode), trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.