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libxml2 DoS
updated since 11.03.2013
Published:08.04.2013
Source:
SecurityVulns ID:12938
Type:library
Threat Level:
5/10
Description:CPU exhaustion.
Affected:LIBXML2 : libxml2 2.7
CVE:CVE-2013-0339 (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.)
 CVE-2013-0338 (libxml2 2.9.0 and earlier allows context-dependent attackers to cause a denial of service (CPU and memory consumption) via an XML file containing an entity declaration with long replacement text and many references to this entity, aka "internal entity expansion" with linear complexity.)
Original documentdocumentDEBIAN, [SECURITY] [DSA 2652-1] libxml2 security update (08.04.2013)
 documentMANDRIVA, [ MDVSA-2013:017 ] libxml2 (11.03.2013)

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