GHSA-8c28-5mp7-v24h TYPO3 CMS vulnerable to Denial of Service in Page Error Handling

• Packagist typo3/cms-core: >= 9.0.0, < 9.5.38 → fixed in 9.5.38 • Packagist typo3/cms-core: >= 10.0.0, < 10.4.33 → fixed in 10.4.33 • Packagist typo3/cms-core: >= 11.0.0, < 11.5.20 → fixed in 11.5.20 • Packagist typo3/cms: >= 10.0.0, < 10.4.33 → fixed in 10.4.33 • Packagist typo3/cms: >= 11.0.0, < 11.5.20 → fixed in 11.5.20

Problem Requesting invalid or non-existing resources via HTTP triggers the page error handler, which again could retrieve content to be shown as an 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 vulnerability is very similar, but not identical, to the one described in TYPO3-CORE-SA-2021-005 (CVE-2021-21359). Solution Update to TYPO3 versions 9.5.38 ELTS, 10.4.33 or 11.5.20 that fix the problem described above. References • TYPO3-CORE-SA-2022-012