34767 : PHP php_sprintf_appendstring Function 64 Bit Casting Memory Corruption
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3 1611 about 7 years ago about 6 years ago 0 times 90%


Disclosure Date


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.


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


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.


The PHP Group


Tools & Filters



Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 6.8
Source: nvd.nist.gov | Generated: 2007-04-10 | Disagree?

Access_vector_2 Access_complexity_1 Authentication_2 Confidentiality_impact_1 Integrity_impact_1 Availability_impact_1


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