Input validation error in WeeChat - CVE-2011-1428
Published: March 17, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU45222
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-1428
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WeeChat.org
Affected software:
WeeChat
WeeChat
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Wee Enhanced Environment for Chat (aka WeeChat) 0.3.4 and earlier does not properly verify that the server hostname matches the domain name of the subject of an X.509 certificate, which allows man-in-the-middle attackers to spoof an SSL chat server via an arbitrary certificate, related to incorrect use of the GnuTLS API.
How to mitigate CVE-2011-1428
Install update from vendor's website.