CVE-2016-7480

Published: 11 January 2017

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.

Notes

Author	Note
mdeslaur	5.x doesn't look vulnerable

Priority

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package	Release	Status
php5 Launchpad, Ubuntu, Debian	precise	Not vulnerable (5.3.10-1ubuntu3.25)
	trusty	Not vulnerable (5.5.9+dfsg-1ubuntu4.20)
	upstream	Needs triage
	xenial	Does not exist
	yakkety	Does not exist
php7.0 Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist
	upstream	Released (7.0.12)
	xenial	Not vulnerable (7.0.13-0ubuntu0.16.04.1)
	yakkety	Not vulnerable (7.0.13-0ubunt0.16.10.1)
	Patches: upstream: https://github.com/php/php-src/commit/61cdd1255d5b9c8453be71aacbbf682796ac77d4

Severity score breakdown

Parameter	Value
Base score	9.8
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Bugs

https://bugs.php.net/bug.php?id=73257

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