CVE-2019-12473
First published: Thu Sep 20 2018(Updated: )
Potential enwiki DOS due to slow WatchedItemStore::countVisitingWatchersMultiple
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/mediawiki/core | >=1.27.0<1.27.6>=1.30.0<1.30.2>=1.31.0<1.31.2 | |
| debian/mediawiki | 1:1.31.16-1+deb10u2 1:1.31.16-1+deb10u6 1:1.35.11-1~deb11u1 1:1.35.13-1~deb11u1 1:1.39.4-1~deb12u1 1:1.39.5-1~deb12u1 1:1.39.5-1 | |
| composer/mediawiki/core | >=1.32.0<1.32.2 | 1.32.2 |
| composer/mediawiki/core | >=1.31.0<1.31.2 | 1.31.2 |
| composer/mediawiki/core | >=1.30.0<1.30.2 | 1.30.2 |
| composer/mediawiki/core | >=1.27.0<1.27.6 | 1.27.6 |
| MediaWiki | >=1.27.0<1.27.6 | |
| MediaWiki | >=1.30.0<1.30.2 | |
| MediaWiki | >=1.31.0<1.31.2 | |
| MediaWiki | >=1.32.0<1.32.2 | |
| Debian Linux | =9.0 |
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Reference Links
- https://phabricator.wikimedia.org/T204729
- https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html
- https://security-tracker.debian.org/tracker/CVE-2019-12473
- https://seclists.org/bugtraq/2019/Jun/12
- https://www.debian.org/security/2019/dsa-4460
- https://nvd.nist.gov/vuln/detail/CVE-2019-12473
- https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-12473.yaml
- https://github.com/advisories/GHSA-33xw-x3pr-rvqj (Advisory)
Frequently Asked Questions
What is the severity of CVE-2019-12473?
CVE-2019-12473 is a potential denial-of-service (DoS) vulnerability in certain versions of Wikimedia MediaWiki.
How do I fix CVE-2019-12473?
To fix CVE-2019-12473, upgrade to MediaWiki version 1.32.2, 1.31.2, 1.30.2, or 1.27.6.
Which versions of MediaWiki are affected by CVE-2019-12473?
Affected versions include MediaWiki 1.27.0 through 1.32.1.
What causes the vulnerability CVE-2019-12473?
CVE-2019-12473 is caused by passing invalid titles to the API, which may query the entire watchlist table.
What is the impact of CVE-2019-12473?
The impact of CVE-2019-12473 is the potential for a denial-of-service attack against the affected MediaWiki installations.
- collector/friends-of-php
- collector/security-tracker-debian
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- package-manager/composer
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- vendor/mediawiki
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- version/mediawiki/1.27.0
- version/mediawiki/1.30.0
- version/mediawiki/1.31.0
- version/mediawiki/1.32.0
- vendor/debian
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- version/debian linux/9.0