CVE-2013-0340
6.8 · MEDIUMOverview
CVE-2013-0340 is a medium-severity vulnerability affecting libexpat_project libexpat. It was published on January 21, 2014 and has a CVSS 2.0 base score of 6.8 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
expat before version 2.4.0 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.
Remediation
Check the references section for vendor advisories and patches from libexpat_project. Update libexpat to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| libexpat_project | libexpat | >= 0, < 2.4.0 | Affected |
| python | python | >= 3.6.0, < 3.6.15 | Affected |
| apple | ipados | >= 0, < 14.8 | Affected |
| apple | iphone_os | >= 0, < 14.8 | Affected |
| apple | macos | >= 0, < 11.6 | Affected |
| apple | tvos | >= 0, < 15.0 | Affected |
| apple | watchos | >= 0, < 8.0 | Affected |
References
Frequently Asked Questions
What is CVE-2013-0340?
CVE-2013-0340 is a medium-severity vulnerability affecting libexpat_project libexpat. It was published on January 21, 2014 and has a CVSS 2.0 base score of 6.8 (MEDIUM).
How severe is CVE-2013-0340?
This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2013-0340?
Check the references section for vendor advisories and patches from libexpat_project. Update libexpat to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2013-0340?
CyberStrike's AI-powered security agents can automatically detect CVE-2013-0340 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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