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CVE-2013-0339

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 201412-11
Posted Dec 12, 2014
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201412-11 - Multiple vulnerabilities have been found in AMD64 x86 emulation base libraries, the worst of which may allow remote execution of arbitrary code. Versions prior to 20140406-r1 are affected.

tags | advisory, remote, arbitrary, x86, vulnerability
systems | linux, gentoo
advisories | CVE-2007-0720, CVE-2007-1536, CVE-2007-2026, CVE-2007-2445, CVE-2007-2741, CVE-2007-3108, CVE-2007-4995, CVE-2007-5116, CVE-2007-5135, CVE-2007-5266, CVE-2007-5268, CVE-2007-5269, CVE-2007-5849, CVE-2010-1205, CVE-2013-0338, CVE-2013-0339, CVE-2013-1664, CVE-2013-1969, CVE-2013-2877, CVE-2014-0160
MD5 | 79d42811d0d77f411edfda4a318d5bb6
Apple iTunes 11.2.2 Insecure Libraries
Posted Jul 7, 2014
Authored by Stefan Kanthak

Apple iTunes version 11.2.2 for Windows comes with outdated and vulnerable libraries.

tags | advisory
systems | windows, apple
advisories | CVE-2013-0339, CVE-2013-1569, CVE-2013-2383, CVE-2013-2384, CVE-2013-2419
MD5 | fd881938444eac64aee8ad1070cfc71a
Mandriva Linux Security Advisory 2013-198
Posted Jul 24, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-198 - A denial of service flaw was found in the way libxml2, a library providing support to read, modify and write XML and HTML files, performed string substitutions when entity values for external entity references replacement was requested / enabled during the XML file parsing. A remote attacker could provide a specially-crafted XML file containing an external entity expansion, when processed would lead to excessive CPU consumption (denial of service.This a different flaw from CVE-2013-0338. parser.c in libxml2 before 2.9.0, as used in Google Chrome before 28.0.1500.71 and other products, allows remote attackers to cause a denial of service via a document that ends abruptly, related to the lack of certain checks for the XML_PARSER_EOF state. The updated packages have been patched to correct these issues.

tags | advisory, remote, denial of service
systems | linux, mandriva
advisories | CVE-2013-0339, CVE-2013-2877
MD5 | 25beea34e921a3859fbf38b5e844e2a8
Ubuntu Security Notice USN-1904-2
Posted Jul 17, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1904-2 - USN-1904-1 fixed vulnerabilities in libxml2. The update caused a regression for certain users. This update fixes the problem. It was discovered that libxml2 would load XML external entities by default. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly obtain access to arbitrary files or cause resource consumption. This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, and Ubuntu 12.10. Various other issues were also addressed.

tags | advisory, arbitrary, vulnerability, xxe
systems | linux, ubuntu
advisories | CVE-2013-0339, CVE-2013-2877
MD5 | 299e2e1ef39b895ca37b71f7b3fddc31
Ubuntu Security Notice USN-1904-1
Posted Jul 16, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1904-1 - It was discovered that libxml2 would load XML external entities by default. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly obtain access to arbitrary files or cause resource consumption. This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, and Ubuntu 12.10. It was discovered that libxml2 incorrectly handled documents that end abruptly. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, xxe
systems | linux, ubuntu
advisories | CVE-2013-0339, CVE-2013-2877, CVE-2013-0339, CVE-2013-2877
MD5 | f4f35de65d8e827fa444b5407469a968
Debian Security Advisory 2652-1
Posted Mar 26, 2013
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2652-1 - Brad Hill of iSEC Partners discovered that many XML implementations are vulnerable to external entity expansion issues, which can be used for various purposes such as firewall circumvention, disguising an IP address, and denial-of-service. libxml2 was susceptible to these problems when performing string substitution during entity expansion.

tags | advisory
systems | linux, debian
advisories | CVE-2013-0338, CVE-2013-0339
MD5 | fee0ed9cf9f2e698e07dda6a630e8765
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