| Name | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| tika (PTS) | jessie, jessie (lts) | 1.5-1+deb8u1 | fixed |
| buster | 1.20-1 | fixed | |
| sid, bullseye | 1.22-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| tika | source | (unstable) | (not affected) |
- tika <not-affected> (Incomplete fix for CVE-2018-11761 not applied)
https://lists.apache.org/thread.html/88de8350cda9b184888ec294c813c5bd8a2081de8fd3666f8904bc05@%3Cdev.tika.apache.org%3E
https://issues.apache.org/jira/projects/TIKA/issues/TIKA-2727
https://github.com/apache/tika/commit/86d4ba1e