Vulnerability CVE-2017-5340


Published: 2017-01-11   Modified: 2017-01-12

Description:
Zend/zend_hash.c in PHP before 7.0.15 and 7.1.x before 7.1.1 mishandles certain cases that require large array allocations, which allows remote attackers to execute arbitrary code or cause a denial of service (integer overflow, uninitialized memory access, and use of arbitrary destructor function pointers) via crafted serialized data.

Vendor: PHP
Product: PHP 
Version:
7.0.9
7.0.8
7.0.7
7.0.6
7.0.5
7.0.4
7.0.3
7.0.2
7.0.14
7.0.13
7.0.12
7.0.11
7.0.10
7.0.1
7.0.0

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial

 References:
http://www.securityfocus.com/bid/95371
https://bugs.php.net/bug.php?id=73832
https://github.com/php/php-src/commit/4cc0286f2f3780abc6084bcdae5dce595daa3c12

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