CVE-2012-0830
First published: Mon Feb 06 2012(Updated: )
The php_register_variable_ex function in php_variables.c in PHP 5.3.9 allows remote attackers to execute arbitrary code via a request containing a large number of variables, related to improper handling of array variables. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-4885.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | =5.3.9 |
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Reference Links
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00016.html
- http://marc.info/?l=bugtraq&m=134012830914727&w=2
- http://openwall.com/lists/oss-security/2012/02/02/12
- http://openwall.com/lists/oss-security/2012/02/03/1
- http://rhn.redhat.com/errata/RHSA-2012-0092.html
- http://secunia.com/advisories/47801
- http://secunia.com/advisories/47806
- http://secunia.com/advisories/47813
- http://secunia.com/advisories/48668
- http://securitytracker.com/id?1026631
- http://support.apple.com/kb/HT5281
- http://svn.php.net/viewvc?view=revision&revision=323007
- http://thexploit.com/sec/critical-php-remote-vulnerability-introduced-in-fix-for-php-hashtable-collision-dos/
- http://www.debian.org/security/2012/dsa-2403
- http://www.h-online.com/security/news/item/Critical-PHP-vulnerability-being-fixed-1427316.html
- http://www.osvdb.org/78819
- http://www.php.net/ChangeLog-5.php#5.3.10
- http://www.securityfocus.com/bid/51830
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72911
- https://gist.github.com/1725489
Frequently Asked Questions
What is the severity of CVE-2012-0830?
CVE-2012-0830 is classified as a critical vulnerability due to its potential to allow remote code execution.
How do I fix CVE-2012-0830?
To fix CVE-2012-0830, update PHP to version 5.3.10 or later, which contains the necessary security patches.
What systems are affected by CVE-2012-0830?
CVE-2012-0830 specifically affects PHP version 5.3.9.
What type of attack can exploit CVE-2012-0830?
CVE-2012-0830 can be exploited through crafted HTTP requests that include a large number of variables.
Is CVE-2012-0830 still a significant risk today?
While CVE-2012-0830 primarily affects outdated systems, any system running PHP 5.3.9 remains at significant risk if not properly updated.
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