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Vulnerability record · CVE-2013-7449 · published 21 April 2016

CVE-2013-7449: Canonical ubuntu linux vulnerability

Canonical · Ubuntu Linux

The ssl_do_connect function in common/server.c in HexChat before 2.10.2, XChat, and XChat-GNOME does not verify that the server hostname matches a domain name in the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

6.5 CVSS 3.0 Medium EPSS 0.76% · top 46.7% CWE-310 · CWE-310
6.5CVSS 3.0 base score, v2 5.8
0.76%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

The ssl_do_connect function in common/server.c in HexChat before 2.10.2, XChat, and XChat-GNOME does not verify that the server hostname matches a domain name in the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://hexchat.readthedocs.org/en/latest/changelog.html Vendor Advisory
http://www.ubuntu.com/usn/USN-2945-1
https://bugzilla.redhat.com/show_bug.cgi?id=1081839
https://github.com/hexchat/hexchat/commit/c9b63f7f9be01692b03fa15275135a4910a7e02d
https://github.com/hexchat/hexchat/issues/524
http://hexchat.readthedocs.org/en/latest/changelog.html Vendor Advisory
http://www.ubuntu.com/usn/USN-2945-1
https://bugzilla.redhat.com/show_bug.cgi?id=1081839
https://github.com/hexchat/hexchat/commit/c9b63f7f9be01692b03fa15275135a4910a7e02d
https://github.com/hexchat/hexchat/issues/524

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Source: NIST National Vulnerability Database (record CVE-2013-7449), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.