This bug was fixed in the package xchat-gnome -
1:0.30.0~git20141005.816798-0ubuntu9
---------------
xchat-gnome (1:0.30.0~git20141005.816798-0ubuntu9) xenial; urgency=medium
* SECURITY UPDATE: no ssl hostname verification (LP: #1565000)
- debian/patches/validate_ssl_hostnames.patch: properly validate
hostnames in src/common/server.c, src/common/ssl.c, src/common/ssl.h.
- CVE number pending
* SECURITY UPDATE: missing ssl certificate handled incorrectly
- debian/patches/handle_missing_ssl_cert.patch: fail connection if
certificate isn't found in src/common/server.c.
- No CVE number
-- Marc Deslauriers <marc.deslauri...@ubuntu.com> Fri, 01 Apr 2016
12:39:36 -0400
** Changed in: xchat-gnome (Ubuntu Xenial)
Status: Confirmed => Fix Released
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Packages, which is subscribed to xchat-gnome in Ubuntu.
https://bugs.launchpad.net/bugs/1565000
Title:
xchat-gnome doesn't validate ssl hostnames
Status in hexchat package in Ubuntu:
Fix Released
Status in xchat package in Ubuntu:
Invalid
Status in xchat-gnome package in Ubuntu:
Fix Released
Status in hexchat source package in Precise:
Invalid
Status in xchat source package in Precise:
Confirmed
Status in xchat-gnome source package in Precise:
Confirmed
Status in hexchat source package in Trusty:
Confirmed
Status in xchat source package in Trusty:
Confirmed
Status in xchat-gnome source package in Trusty:
Confirmed
Status in hexchat source package in Wily:
Fix Released
Status in xchat source package in Wily:
Confirmed
Status in xchat-gnome source package in Wily:
Confirmed
Status in hexchat source package in Xenial:
Fix Released
Status in xchat source package in Xenial:
Invalid
Status in xchat-gnome source package in Xenial:
Fix Released
Bug description:
http://www.openwall.com/lists/oss-security/2015/01/29/23
XChat did not verify that the server hostname matched the domain name in
the subject's Common Name (CN) or subjectAltName field in X.509
certificates. This could allow a man-in-the-middle attacker to spoof an
SSL server if they had a certificate that was valid for any domain name.
Also applied to hexchat and xchat-gnome.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/hexchat/+bug/1565000/+subscriptions
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