CVE-2018-11796
moderate-risk
Published 2018-10-09
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.
Do I need to act?
~
3.9% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (8)
Third Party Advisory
http://www.securityfocus.com/bid/105585
Third Party Advisory
http://www.securityfocus.com/bid/105585
38
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
7/34 · Low
Exposure
5/34 · Minimal