Vulnerability Description
The _zip_name_locate function in zip_name_locate.c in the Zip extension in PHP before 5.3.6 does not properly handle a ZIPARCHIVE::FL_UNCHANGED argument, which might allow context-dependent attackers to cause a denial of service (NULL pointer dereference) via an empty ZIP archive that is processed with a (1) locateName or (2) statName operation.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | <= 5.3.5 |
References
- http://bugs.php.net/bug.php?id=53885Exploit
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057709.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057710.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056642.html
- http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
- http://marc.info/?l=bugtraq&m=133469208622507&w=2
- http://secunia.com/advisories/43621Vendor Advisory
- http://securityreason.com/achievement_securityalert/96
- http://securityreason.com/securityalert/8146
- http://support.apple.com/kb/HT5002
- http://svn.php.net/viewvc/?view=revision&revision=307867Patch
- http://www.debian.org/security/2011/dsa-2266
- http://www.exploit-db.com/exploits/17004Exploit
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:052
FAQ
What is CVE-2011-0421?
CVE-2011-0421 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The _zip_name_locate function in zip_name_locate.c in the Zip extension in PHP before 5.3.6 does not properly handle a ZIPARCHIVE::FL_UNCHANGED argument, which might allow context-dependent attackers ...
How severe is CVE-2011-0421?
CVE-2011-0421 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-0421?
Check the references section above for vendor advisories and patch information. Affected products include: Php Php.