CVE-2011-4153

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 11.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-01-18 · updated 2026-06-16
Weakness: CWE-20

Description

PHP 5.3.8 does not always check the return value of the zend_strndup function, which might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted input to an application that performs strndup operations on untrusted string data, as demonstrated by the define function in zend_builtin_functions.c, and unspecified functions in ext/soap/php_sdl.c, ext/standard/syslog.c, ext/standard/browscap.c, ext/oci8/oci8.c, ext/com_dotnet/com_typeinfo.c, and main/php_open_temporary_file.c.

Affected products

PHP: 5.3.8

References

http://archives.neohapsis.com/archives/bugtraq/2012-01/0092.html
http://cxsecurity.com/research/103
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00001.html
http://marc.info/?l=bugtraq&m=134012830914727&w=2
http://secunia.com/advisories/48668
http://www.exploit-db.com/exploits/18370/
http://archives.neohapsis.com/archives/bugtraq/2012-01/0092.html
http://cxsecurity.com/research/103
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041

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