CVE-2013-0339

libxml2: CPU consumption DoS and other effects when performing string substitutions during external entities expansion

Published Jan 21, 2014 CVSS 2.0 · 6.8 Medium EPSS 3.6% KEV · Not listed
Description
libxml2 through 2.9.1 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader 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 libxml2 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

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-2652-1 libxml2 security update
EUVD EUVD EUVD-2013-0351 libxml2 through 2.9.1 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader 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 libxml2 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.
Ubuntu USN Ubuntu USN USN-1904-1 libxml2 vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.01783}

epss

{'score': 0.02394}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 2:25 PM
Reserved
Dec 6, 2012, 12:00 AM
Status
Modified
Published
Jan 21, 2014, 6:55 PM
Modified
Jun 16, 2026, 11:49 PM
Severity
Moderate
Public date
Feb 19, 2013, 12:00 AM