Description
libxml2 through 2.9.1 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because libxml2 already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed and each affected application would need its own CVE.
References (15)
Core 15
Core References
Vendor Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/52662
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
Mailing List mailing-list
x_refsource_mlist
http://openwall.com/lists/oss-security/2013/02/21/24
Mailing List mailing-list
x_refsource_mlist
http://openwall.com/lists/oss-security/2013/02/22/3
Mailing List mailing-list
x_refsource_mlist
http://seclists.org/oss-sec/2013/q4/188
Mailing List mailing-list
x_refsource_mlist
http://seclists.org/oss-sec/2013/q4/184
Mailing List mailing-list
x_refsource_mlist
http://seclists.org/oss-sec/2013/q4/182
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1904-2
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1904-1
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2013/dsa-2652
Issue Tracking x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=915149
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/54172
Vendor Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/55568
Exploit, Patch x_refsource_misc
https://git.gnome.org/browse/libxml2/commit/?id=4629ee02ac649c27f9c0cf98ba017c6b5526070f
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2013/04/12/6
Scores
EPSS
0.0178
EPSS Percentile
83.0%
Details
CWE
CWE-264
Status
published
Products (49)
canonical/ubuntu_linux
10.04
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
12.10
canonical/ubuntu_linux
13.04
debian/debian_linux
6.0
debian/debian_linux
7.0
suse/linux_enterprise_server
10 sp4
xmlsoft/libxml2
1.7.0
xmlsoft/libxml2
1.7.1
xmlsoft/libxml2
1.7.2
... and 39 more
Published
Jan 21, 2014
Tracked Since
Feb 18, 2026