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
Configurations
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Information
Published : 2014-01-21 10:55
Updated : 2023-02-12 20:41
NVD link : CVE-2013-0340
Mitre link : CVE-2013-0340
JSON object : View
CWE
CWE-611
Improper Restriction of XML External Entity Reference
Products Affected
apple
- tvos
- macos
- watchos
- iphone_os
- ipados
python
- python
libexpat_project
- libexpat