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The SplObjectStorage unserialize implementation in ext/spl/spl_observer.c in PHP before 7.0.12 does not verify that a key is an object, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access) via crafted serialized data.
Metrics
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OR
*cpe:2.3:a:php:php:7.0.11:*:*:*:*:*:*:* (and previous)
Added
CVSS V2
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Added
CVSS V3
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added
CWE
CWE-119
Changed
Reference Type
http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7 No Types Assigned
http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7 Third Party Advisory, VDB Entry
Changed
Reference Type
http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf No Types Assigned
http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf Third Party Advisory, Technical Description, Exploit