CVE-2009-3767

NameCVE-2009-3767
Descriptionlibraries/libldap/tls_o.c in OpenLDAP 2.2 and 2.4, and possibly other versions, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-1943-1
NVD severitymedium (attack range: remote)
Debian Bugs553432

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openldap (PTS)wheezy2.4.31-2+deb7u2fixed
wheezy (security)2.4.31-2+deb7u3fixed
jessie (security), jessie2.4.40+dfsg-1+deb8u3fixed
stretch2.4.44+dfsg-5+deb9u1fixed
buster, sid2.4.45+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openldapsource(unstable)2.4.17-2.1low553432
openldapsourcelenny2.4.11-1+lenny1mediumDSA-1943-1
openldap2.3source(unstable)(unfixed)medium
openldap2.3sourceetch2.3.30-5+etch3mediumDSA-1943-1

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