Description
The Zip extension in PHP before 5.3.6 allows context-dependent attackers to cause a denial of service (application crash) via a ziparchive stream that is not properly handled by the stream_get_contents 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 6.0 | php5 | 5.3.3-7+squeeze8 | DSA-2408-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- PHP 5.3.x 'Zip' Extension - 'stream_get_contents()' Denial of Service EDB-35484 · dos · Mar 10, 2011 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- DSA-2408-1 php5 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- MDVSA-2011:053 vendor-advisory
- http://www.php.net/ChangeLog-5.php
- APPLE-SA-2011-10-12-3 vendor-advisory
- MDVSA-2011:052 vendor-advisory
- ADV-2011-0744 vdb-entry
- http://support.apple.com/kb/HT5002
- 46969 vdb-entry
- http://bugs.php.net/bug.php?id=53579