Advisory details:
github_osv / GHSA-4p9g-qgx9-397p
| Advisory ID | github_osv/GHSA-4p9g-qgx9-397p |
| Aliases |
CVE-2021-21359
|
| Summary | Denial of Service in Page Error Handling > ### Meta > * CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C` (5.5) > * CWE-405, CWE-674 > * Status: **DRAFT** ### Problem 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. ### Solution Update to TYPO3 versions 9.5.25, 10.4.14, 11.1.1 that fix the problem described. ### Credits Thanks to Paul Keller, Mathias Bolt Lesniak and Kay Strobach who reported this issue and to TYPO3 framework merger Frank Nägler and to TYPO3 security team member Torben Hansen who fixed the issue. ### References * [TYPO3-CORE-SA-2021-005](https://typo3.org/security/advisory/typo3-core-sa-2021-005) |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 5.3 |
| Risk | 2.6 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 5.9 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-4p9g-qgx9-397p/GHSA-4p9g-qgx9-397p.json |
| generic_textual | MODERATE |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.