CVE-2011-0420

Public Exploit

Description

The grapheme_extract function in the Internationalization extension (Intl) for ICU for PHP 5.3.5 allows context-dependent attackers to cause a denial of service (crash) via an invalid size argument, which triggers a NULL pointer dereference.

5.0

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 13.31% Top 10%

Vendor Advisory debian.org Vendor Advisory apple.com

Affected: n/a n/a

References

Link	Tags
http://www.securityfocus.com/archive/1/516504/100/0/threaded	mailing list
http://www.debian.org/security/2011/dsa-2266	vendor advisory
http://www.kb.cert.org/vuls/id/210829	third party advisory us government resource
http://www.securityfocus.com/bid/46429	vdb entry exploit
http://securityreason.com/securityalert/8087	third party advisory
http://www.exploit-db.com/exploits/16182	exploit
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html	vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/65437	vdb entry
http://www.securityfocus.com/archive/1/516518/100/0/threaded	mailing list
http://securityreason.com/achievement_securityalert/94	third party advisory exploit
http://support.apple.com/kb/HT5002
http://svn.php.net/viewvc/php/php-src/trunk/ext/intl/grapheme/grapheme_string.c?r1=306449&r2=306448&pathrev=306449	patch

Frequently Asked Questions

What is the severity of CVE-2011-0420?: CVE-2011-0420 has been scored as a medium severity vulnerability.
How to fix CVE-2011-0420?: To fix CVE-2011-0420, 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-2011-0420 being actively exploited in the wild?: It is possible that CVE-2011-0420 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~13% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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