Description
The t3lib_div::validEmail function in TYPO3 4.2.x before 4.2.15, 4.3.x before 4.3.7, and 4.4.x before 4.4.4 does not properly restrict input to filter_var FILTER_VALIDATE_EMAIL operations in PHP, which allows remote attackers to cause a denial of service (memory consumption and application crash) via a long e-mail address string, a related issue to CVE-2010-3710.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 5.0 | typo3-src | 4.2.5-1+lenny6 | DSA-2121-1 |
Advisories 1
- DSA-2121-1 typo3-src - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- 43786 vdb-entry
- DSA-2121 vendor-advisory
- http://typo3.org/teams/security/security-bulletins/typo3-sa-2010-020/