OSVDB ID: 34767

Title: PHP php_sprintf_appendstring Function 64 Bit Casting Memory Corruption

Info

Disclosure

Mar 30, 2007

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Unknown

Description

PHP contains a flaw that may allow a context-dependent attacker to gain elevated privileges. The issue is due to an integer signedness error in the printf function family as used on 64 bit machines. When a width and precision of -1 is passed to the php_sprintf_appendstring function, it may place an internal buffer at an arbitrary memory location. This may allow an attacker to execute arbitrary code.

Classification

Location: Local Access Required, Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Unknown
Disclosure: OSVDB Verified, Vendor Verified

Solution

Upgrade to version 5.2.1 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

The PHP Group

PHP

5.2.0
4.4.4

References

Credit

Unknown or Incomplete



Direct URL: http://osvdb.org/34767