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- Snyk ID SNYK-DEBIAN11-EXPAT-524217
- published 21 Jan 2014
- disclosed 21 Jan 2014
How to fix?
There is no fixed version for
Note: Versions mentioned in the description apply only to the upstream
expat package and not the
expat package as distributed by
How to fix? for
Debian:11 relevant fixed versions and status.
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.