CVE-2018-11796

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.

Risk Information

Base Score

7.5

MODERATE

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score

Exploitation Probability

3.94

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2018-11761,CVE-2018-11796 are fixed in Apache-tika-core 1.19.1	Windows
Multiple Vulnerabilities are affected in IBM Planning Analytics Local 2.0	Windows
Multiple Vulnerabilities are affected in IBM Planning Analytics Local 2.1	Windows
Vulnerabilities CVE-2018-11761,CVE-2018-11796 are fixed in Apache-tika-core for Linux 1.19.1	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234