← Vulnerability feed

Vulnerability record · CVE-2011-0421 · published 20 March 2011

CVE-2011-0421: Php vulnerability

Php · Php

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 2.0 Medium EPSS 14% · top 3.7%
4.3CVSS 2.0 base score
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
54References, 6 tagged exploit
16 Jun 2026Last modified by NVD

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.

AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://bugs.php.net/bug.php?id=53885 Exploit
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/43621 Vendor 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=307867 Patch
http://www.debian.org/security/2011/dsa-2266
http://www.exploit-db.com/exploits/17004 Exploit
http://www.mandriva.com/security/advisories?name=MDVSA-2011:052
http://www.mandriva.com/security/advisories?name=MDVSA-2011:053
http://www.mandriva.com/security/advisories?name=MDVSA-2011:099
http://www.php.net/ChangeLog-5.php
http://www.php.net/archive/2011.php
http://www.php.net/releases/5_3_6.php
http://www.securityfocus.com/archive/1/517065/100/0/threaded
http://www.securityfocus.com/bid/46354
http://www.vupen.com/english/advisories/2011/0744 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0764 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0890 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=688735 ExploitPatch
https://exchange.xforce.ibmcloud.com/vulnerabilities/66173
http://bugs.php.net/bug.php?id=53885 Exploit
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/43621 Vendor 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=307867 Patch
http://www.debian.org/security/2011/dsa-2266

Track CVE-2011-0421 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-4577PHP-CGI on Windows argument injection leads to remote code executionPHP-CGI on Windows can misinterpret characters in the command line passed to Win32 API functions when certain code pages are configured, due to Windo…KEVEPSS 100%analysed9.8CVE-2019-11043PHP-FPM buffer overflow enables remote code executionPHP-FPM in certain configurations writes past allocated buffers into FCGI protocol data space, an out-of-bounds write (CWE-787, CWE-120). It affects …KEVEPSS 100%analysed9.8CVE-2012-1823PHP-CGI query string option injection enables remote code executionPHP versions before 5.3.12 and 5.4.x before 5.4.2, when run as a CGI script (php-cgi), mishandle query strings that lack an equals sign, allowing com…KEVEPSS 100%analysed10.0CVE-2015-0235glibc gethostbyname heap buffer overflow (GHOST)CVE-2015-0235 is a heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2 and other 2.x versions before 2.18. It is reach…EPSS 95%analysed10.0CVE-2012-2688Php vulnerabilityUnspecified vulnerability in the _php_stream_scandir function in the stream implementation in PHP before 5.3.15 and 5.4.x before 5.4.5 has unknown im…EPSS 10%10.0CVE-2012-2376Php memory buffer overflow vulnerabilityBuffer overflow in the com_print_typeinfo function in PHP 5.4.3 and earlier on Windows allows remote attackers to execute arbitrary code via crafted …EPSS 20%10.0CVE-2011-3268Php memory buffer overflow vulnerabilityBuffer overflow in the crypt function in PHP before 5.3.7 allows context-dependent attackers to have an unspecified impact via a long salt argument, …EPSS 5.7%10.0CVE-2009-4143Php vulnerabilityPHP before 5.2.12 does not properly handle session data, which has unspecified impact and attack vectors related to (1) interrupt corruption of the S…EPSS 2.9%

Source: NIST National Vulnerability Database (record CVE-2011-0421), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.