PHP contains a flaw that may allow a malicious user to access arbitrary memory addresses. The issue is due to the shared memory (shmop) function failing to verify if the type of resource supplied is a shmop resource. By using other types of resources it is possible to read and write to shared memory addresses resulting in a loss of integrity and/or availability.
Classification
Location:
Local Access Required
Attack Type:
Input Manipulation
Impact:
Loss of Integrity,
Loss of Availability
Exploit:
Exploit Public
Solution
Upgrade to PHP version 4.4.5, PHP version 5.1.2 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
hardened-php.net -
www.hardened-php.net
