CVE-2018-11796

7.5HIGH

Key Information:

Vendor
Apache
Status
Apache Tika
Vendor
CVE Published:
9 October 2018

Summary

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.

Affected Version(s)

Apache Tika Apache Tomcat 0.1 to 1.19

References

http://www.securityfocus.com/bid/105585
vdb-entryx_refsource_BID
https://lists.apache.org/thread.html/88de8350cda9b184888e...
x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-20190903-0002/
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.