ghsa-h8q5-g2cj-qr5h
Vulnerability from github
Published
2018-10-17 15:43
Modified
2022-04-26 21:46
Severity ?
Summary
Apache Tika is vulnerable to entity expansions which can lead to a denial of service attack
Details
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": [ { "package": { "ecosystem": "Maven", "name": "org.apache.tika:tika-core" }, "ranges": [ { "events": [ { "introduced": "0.1" }, { "fixed": "1.19.1" } ], "type": "ECOSYSTEM" } ] } ], "aliases": [ "CVE-2018-11796" ], "database_specific": { "cwe_ids": [ "CWE-611" ], "github_reviewed": true, "github_reviewed_at": "2020-06-16T21:39:33Z", "nvd_published_at": null, "severity": "HIGH" }, "details": "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.", "id": "GHSA-h8q5-g2cj-qr5h", "modified": "2022-04-26T21:46:04Z", "published": "2018-10-17T15:43:25Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-11796" }, { "type": "WEB", "url": "https://access.redhat.com/errata/RHSA-2019:3892" }, { "type": "ADVISORY", "url": "https://github.com/advisories/GHSA-h8q5-g2cj-qr5h" }, { "type": "PACKAGE", "url": "https://github.com/apache/tika" }, { "type": "WEB", "url": "https://lists.apache.org/thread.html/88de8350cda9b184888ec294c813c5bd8a2081de8fd3666f8904bc05@%3Cdev.tika.apache.org%3E" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20190903-0002" }, { "type": "WEB", "url": "http://www.securityfocus.com/bid/105585" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "type": "CVSS_V3" } ], "summary": "Apache Tika is vulnerable to entity expansions which can lead to a denial of service attack" }
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Sightings
Author | Source | Type | Date |
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Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.