CVE-2013-0340

Public Exploit

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.

Category

6.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://openwall.com/lists/oss-security/2013/02/22/3 mailing list exploit third party advisory
http://www.openwall.com/lists/oss-security/2013/04/12/6 third party advisory mailing list
http://www.osvdb.org/90634 vdb entry broken link
http://securitytracker.com/id?1028213 vdb entry third party advisory
https://security.gentoo.org/glsa/201701-21 third party advisory vendor advisory
http://www.securityfocus.com/bid/58233 vdb entry third party advisory broken link
https://support.apple.com/kb/HT212805 third party advisory
https://support.apple.com/kb/HT212804 third party advisory
https://support.apple.com/kb/HT212807 third party advisory
https://support.apple.com/kb/HT212819 third party advisory
https://support.apple.com/kb/HT212814 third party advisory
https://support.apple.com/kb/HT212815 third party advisory
http://seclists.org/fulldisclosure/2021/Sep/33 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/34 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/40 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/35 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/38 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/39 third party advisory mailing list
https://lists.apache.org/thread.html/r41eca5f4f09e74436cbb05dec450fc2bef37b5d3e966aa7cc5fada6d%40%3Cannounce.apache.org%3E mailing list
https://lists.apache.org/thread.html/rfb2c193360436e230b85547e85a41bea0916916f96c501f5b6fc4702%40%3Cusers.openoffice.apache.org%3E mailing list
http://www.openwall.com/lists/oss-security/2021/10/07/4 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Oct/62 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Oct/63 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Oct/61 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2013-0340?
CVE-2013-0340 has been scored as a medium severity vulnerability.
How to fix CVE-2013-0340?
To fix CVE-2013-0340, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-0340 being actively exploited in the wild?
It is possible that CVE-2013-0340 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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