CVE-2013-0339

critical

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

https://bugzilla.redhat.com/show_bug.cgi?id=915149

http://www.ubuntu.com/usn/USN-1904-2

http://www.ubuntu.com/usn/USN-1904-1

http://www.openwall.com/lists/oss-security/2013/04/12/6

http://www.debian.org/security/2013/dsa-2652

http://secunia.com/advisories/55568

http://secunia.com/advisories/54172

http://secunia.com/advisories/52662

http://seclists.org/oss-sec/2013/q4/188

http://seclists.org/oss-sec/2013/q4/184

http://seclists.org/oss-sec/2013/q4/182

http://openwall.com/lists/oss-security/2013/02/22/3

http://openwall.com/lists/oss-security/2013/02/21/24

http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html

Details

Source: Mitre, NVD

Published: 2014-01-21

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 9.8

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

Severity: Critical