CVE - CVE-2013-0340

CVE-ID
CVE-2013-0340	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler 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 expat 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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:1028213 URL:http://securitytracker.com/id?1028213 MISC:20210921 APPLE-SA-2021-09-20-1 iOS 15 and iPadOS 15 URL:http://seclists.org/fulldisclosure/2021/Sep/33 MISC:20210921 APPLE-SA-2021-09-20-2 watchOS 8 URL:http://seclists.org/fulldisclosure/2021/Sep/34 MISC:20210921 APPLE-SA-2021-09-20-3 tvOS 15 URL:http://seclists.org/fulldisclosure/2021/Sep/35 MISC:20210921 APPLE-SA-2021-09-20-6 Additional information for APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8 URL:http://seclists.org/fulldisclosure/2021/Sep/38 MISC:20210921 APPLE-SA-2021-09-20-7 Additional information for APPLE-SA-2021-09-13-3 macOS Big Sur 11.6 URL:http://seclists.org/fulldisclosure/2021/Sep/39 MISC:20210921 APPLE-SA-2021-09-20-8 Additional information for APPLE-SA-2021-09-13-4 Security Update 2021-005 Catalina URL:http://seclists.org/fulldisclosure/2021/Sep/40 MISC:20211027 APPLE-SA-2021-10-26-10 Additional information for APPLE-SA-2021-09-20-2 watchOS 8 URL:http://seclists.org/fulldisclosure/2021/Oct/62 MISC:20211027 APPLE-SA-2021-10-26-11 Additional information for APPLE-SA-2021-09-20-3 tvOS 15 URL:http://seclists.org/fulldisclosure/2021/Oct/63 MISC:20211027 APPLE-SA-2021-10-26-9 Additional information for APPLE-SA-2021-09-20-1 iOS 15 and iPadOS 15 URL:http://seclists.org/fulldisclosure/2021/Oct/61 MISC:58233 URL:http://www.securityfocus.com/bid/58233 MISC:90634 URL:~~http://www.osvdb.org/90634~~ (Obsolete source) MISC:GLSA-201701-21 URL:https://security.gentoo.org/glsa/201701-21 MISC:[announce] 20211007 CVE-2021-40439: Apache OpenOffice: Billion Laughs URL:https://lists.apache.org/thread.html/r41eca5f4f09e74436cbb05dec450fc2bef37b5d3e966aa7cc5fada6d%40%3Cannounce.apache.org%3E MISC:[openoffice-users] 20211007 CVE-2021-40439: Apache OpenOffice: Billion Laughs URL:https://lists.apache.org/thread.html/rfb2c193360436e230b85547e85a41bea0916916f96c501f5b6fc4702%40%3Cusers.openoffice.apache.org%3E MISC:[oss-security] 20130221 CVEs for libxml2 and expat internal and external XML entity expansion URL:http://openwall.com/lists/oss-security/2013/02/22/3 MISC:[oss-security] 20130413 Re-evaluating expat/libxml2 CVE assignments URL:http://www.openwall.com/lists/oss-security/2013/04/12/6 MISC:[oss-security] 20211007 CVE-2021-40439: Apache OpenOffice: Billion Laughs URL:http://www.openwall.com/lists/oss-security/2021/10/07/4 MISC:https://support.apple.com/kb/HT212804 URL:https://support.apple.com/kb/HT212804 MISC:https://support.apple.com/kb/HT212805 URL:https://support.apple.com/kb/HT212805 MISC:https://support.apple.com/kb/HT212807 URL:https://support.apple.com/kb/HT212807 MISC:https://support.apple.com/kb/HT212814 URL:https://support.apple.com/kb/HT212814 MISC:https://support.apple.com/kb/HT212815 URL:https://support.apple.com/kb/HT212815 MISC:https://support.apple.com/kb/HT212819 URL:https://support.apple.com/kb/HT212819
Assigning CNA
Red Hat, Inc.
Date Record Created
20121206	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20121206)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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