In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.
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History
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MITRE
Status: PUBLISHED
Assigner: apache
Published: 2018-10-09T22:00:00Z
Updated: 2024-09-16T18:19:51.122Z
Reserved: 2018-06-05T00:00:00
Link: CVE-2018-11796
Vulnrichment
No data.
NVD
Status : Modified
Published: 2018-10-09T22:29:00.393
Modified: 2024-11-21T03:44:03.093
Link: CVE-2018-11796
Redhat