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CVE-2018-11796

Published: Oct 9, 2018

Modified: Sep 16, 2024

PUBLISHED

Description

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.

Vendor	Product	Versions
Apache Software Foundation	Apache Tika	affected `Apache Tomcat 0.1 to 1.19`

References

vdb-entry

x_refsource_BID

https://lists.apache.org/thread.html/88de8350cda9b184888ec294c813c5bd8a2081de8fd3666f8904bc05%40%3Cdev.tika.apache.org%3E

x_refsource_CONFIRM

https://security.netapp.com/advisory/ntap-20190903-0002/

x_refsource_CONFIRM

vendor-advisory

x_refsource_REDHAT

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