Moderate severityNVD Advisory· Published Mar 23, 2021· Updated Aug 3, 2024
Denial of Service in Page Error Handling
CVE-2021-21359
Description
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.25, 10.4.14, 11.1.1 requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded. This is fixed in versions 9.5.25, 10.4.14, 11.1.1.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
typo3/cms-corePackagist | >= 10.0.0, < 10.4.14 | 10.4.14 |
typo3/cms-corePackagist | >= 11.0.0, < 11.1.1 | 11.1.1 |
typo3/cms-corePackagist | >= 9.0.0, < 9.5.25 | 9.5.25 |
typo3/cmsPackagist | >= 10.0.0, < 10.4.14 | 10.4.14 |
typo3/cmsPackagist | >= 11.0.0, < 11.1.1 | 11.1.1 |
typo3/cmsPackagist | >= 9.0.0, < 9.5.25 | 9.5.25 |
Affected products
4- osv-coords3 versions
>= 9.0.0, < 9.5.25+ 2 more
- (no CPE)range: >= 9.0.0, < 9.5.25
- (no CPE)range: >= 10.0.0, < 10.4.14
- (no CPE)range: >= 10.0.0, < 10.4.14
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-4p9g-qgx9-397pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-21359ghsaADVISORY
- github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-21359.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-21359.yamlghsaWEB
- github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397pghsax_refsource_CONFIRMWEB
- packagist.org/packages/typo3/cms-coreghsax_refsource_MISCWEB
- typo3.org/security/advisory/typo3-core-sa-2021-005ghsax_refsource_MISCWEB
News mentions
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