Description
Multiple HTTP response splitting vulnerabilities in PHP 5.1.1 allow remote attackers to inject arbitrary HTTP headers via a crafted Set-Cookie header, related to the (1) session extension (aka ext/session) and the (2) header function.
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 4.0 | php4 | 6:4.4.4-8+etch4 | DSA-1331-1 |
| Debian 3.1 | php4 | 4:4.3.10-22 | DSA-1331-1 |
Advisories 1
- DSA-1331-1 php4 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- 19355 third-party-advisory
- 1015484 vdb-entry
- USN-261-1 vendor-advisory
- SUSE-SR:2006:004 vendor-advisory
- 18431 third-party-advisory
- ADV-2006-0369 vdb-entry
- ADV-2006-0177 vdb-entry
- 19179 third-party-advisory
- http://www.hardened-php.net/advisory_012006.112.html
- GLSA-200603-22 vendor-advisory
- DSA-1331 vendor-advisory
- 18697 third-party-advisory
- php-session-response-splitting(24094) vdb-entry
- 25945 third-party-advisory
- MDKSA-2006:028 vendor-advisory
- http://www.php.net/release_5_1_2.php
- 19012 third-party-advisory
- 16220 vdb-entry