CVE Database
/

CVE-2013-0340

Back to search

CVE-2013-0340

Published: Jan 21, 2014

Modified: Nov 25, 2025

PUBLISHED

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.

VendorProductVersions

Unknown

libexpat

affected
0 - < 2.4.0

References

90634
vdb-entry
x_refsource_OSVDB
1028213
vdb-entry
x_refsource_SECTRACK
GLSA-201701-21
vendor-advisory
x_refsource_GENTOO
58233
vdb-entry
x_refsource_BID
20210921 APPLE-SA-2021-09-20-2 watchOS 8
mailing-list
x_refsource_FULLDISC
20210921 APPLE-SA-2021-09-20-3 tvOS 15
mailing-list
x_refsource_FULLDISC

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now