CVE-2016-7143

NameCVE-2016-7143
DescriptionThe m_authenticate function in modules/m_sasl.c in Charybdis before 3.5.3 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3661-1
NVD severitymedium (attack range: remote)
Debian Bugs836714

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
charybdis (PTS)wheezy3.3.0-7.1vulnerable
jessie (security), jessie3.4.2-5+deb8u2fixed
stretch3.5.3-1fixed
buster, sid3.5.5-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
charybdissource(unstable)3.5.3-1medium836714
charybdissourcejessie3.4.2-5+deb8u2mediumDSA-3661-1

Notes

[wheezy] - charybdis <no-dsa> (unsupported)
charybdis patch: https://github.com/charybdis-ircd/charybdis/commit/818a3fda944b26d4814132cee14cfda4ea4aa824
http://www.openwall.com/lists/oss-security/2016/09/04/3

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