CVE-2011-4153
MEDIUM severity · CVSS 5 · Improper input validation
5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impactNone
Availability impact—
Exploit probability (EPSS)12%
AV:N/AC:L/Au:N/C:N/I:N/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- 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://archives.neohapsis.com/archives/bugtraq/2012-01/0092.htmlExploit
- http://cxsecurity.com/research/103Exploit