CVE-2011-0421

Public Exploit

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.

4.3

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 9.29% Top 10%

Vendor Advisory mandriva.com Vendor Advisory marc.info Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory mandriva.com Vendor Advisory debian.org Vendor Advisory apple.com Vendor Advisory fedoraproject.org Vendor Advisory mandriva.com Vendor Advisory secunia.com Vendor Advisory vupen.com Vendor Advisory vupen.com Vendor Advisory vupen.com

Affected: n/a n/a

References

Link	Tags
http://www.mandriva.com/security/advisories?name=MDVSA-2011:099	vendor advisory
http://marc.info/?l=bugtraq&m=133469208622507&w=2	vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html	vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057709.html	vendor advisory
http://www.vupen.com/english/advisories/2011/0764	vdb entry vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056642.html	vendor advisory
http://securityreason.com/securityalert/8146	third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=688735	patch exploit
http://secunia.com/advisories/43621	third party advisory vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2011:053	vendor advisory
http://www.debian.org/security/2011/dsa-2266	vendor advisory
http://www.vupen.com/english/advisories/2011/0890	vdb entry vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/66173	vdb entry
http://www.php.net/releases/5_3_6.php
http://svn.php.net/viewvc/?view=revision&revision=307867	patch
http://securityreason.com/achievement_securityalert/96	third party advisory
http://www.php.net/ChangeLog-5.php
http://www.php.net/archive/2011.php
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html	vendor advisory
http://www.securityfocus.com/archive/1/517065/100/0/threaded	mailing list
http://www.exploit-db.com/exploits/17004	exploit
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057710.html	vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2011:052	vendor advisory
http://www.vupen.com/english/advisories/2011/0744	vdb entry vendor advisory
http://www.securityfocus.com/bid/46354	vdb entry
http://support.apple.com/kb/HT5002
http://bugs.php.net/bug.php?id=53885	exploit

Frequently Asked Questions

What is the severity of CVE-2011-0421?: CVE-2011-0421 has been scored as a medium severity vulnerability.
How to fix CVE-2011-0421?: To fix CVE-2011-0421, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-0421 being actively exploited in the wild?: It is possible that CVE-2011-0421 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~9% probability that this vulnerability will be exploited by malicious actors in the next 30 days.