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.
References
Link | Resource |
---|---|
https://lists.apache.org/thread.html/88de8350cda9b184888ec294c813c5bd8a2081de8fd3666f8904bc05@%3Cdev.tika.apache.org%3E | Mailing List Vendor Advisory |
http://www.securityfocus.com/bid/105585 | Third Party Advisory VDB Entry |
https://security.netapp.com/advisory/ntap-20190903-0002/ | |
https://access.redhat.com/errata/RHSA-2019:3892 |
Configurations
Information
Published : 2018-10-09 15:29
Updated : 2019-09-03 11:15
NVD link : CVE-2018-11796
Mitre link : CVE-2018-11796
JSON object : View
CWE
CWE-611
Improper Restriction of XML External Entity Reference
Products Affected
apache
- tika