CVE-2014-0191

NameCVE-2014-0191
DescriptionThe xmlParserHandlePEReference function in parser.c in libxml2 before 2.9.2, as used in Web Listener in Oracle HTTP Server in Oracle Fusion Middleware 11.1.1.7.0, 12.1.2.0, and 12.1.3.0 and other products, loads external parameter entities regardless of whether entity substitution or validation is enabled, which allows remote attackers to cause a denial of service (resource consumption) via a crafted XML document.
SourceCVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, more)
ReferencesDLA-151-1, DSA-2978-2
NVD severitymedium (attack range: remote)
Debian Bugs747309
Debian/oldoldstablepackage libxml2 is vulnerable.
Debian/oldstablepackage libxml2 is vulnerable.
Debian/stablenot vulnerable.
Debian/testingnot vulnerable.
Debian/unstablenot vulnerable.

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxml2 (PTS)squeeze, squeeze (security)2.7.8.dfsg-2+squeeze8vulnerable
squeeze (lts)2.7.8.dfsg-2+squeeze11fixed
wheezy2.8.0+dfsg1-7+wheezy2vulnerable
wheezy (security)2.8.0+dfsg1-7+wheezy4fixed
jessie, stretch2.9.1+dfsg1-5fixed
sid2.9.2+dfsg1-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxml2source(unstable)2.9.1+dfsg1-4medium747309
libxml2sourcesqueeze2.7.8.dfsg-2+squeeze11mediumDLA-151-1
libxml2sourcewheezy2.8.0+dfsg1-7+wheezy3mediumDSA-2978-2

Notes

The upstream patch we used in DSA-2978-1 and DLA-16-1 is only half of the fix. The other half is likely https://git.gnome.org/browse/libxml2/commit/?id=4629ee02ac649c27f9c0cf98ba017c6b5526070f which is only in libxml 2.9 and newer. This was found out with the test case given in https://github.com/sparklemotion/nokogiri/issues/693#issuecomment-8935085.
First patches: https://git.gnome.org/browse/libxml2/commit/?id=9cd1c3cfbd32655d60572c0a413e017260c854df https://git.gnome.org/browse/libxml2/commit/?id=dd8367da17c2948981a51e52c8a6beb445edf825

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