CVE-2016-9936 Use after free in n/a
Remote attackers can cause denial of service or potentially execute code via crafted serialized data in PHP's unserialize function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-9936?
CVE-2016-9936 is a critical use after free vulnerability in Php Php, published on 4 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The unserialize implementation in ext/standard/var.c in PHP 7.x before 7.0.14 allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted serialized data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6834.
Weakness: CWE-416
Which versions are affected by CVE-2016-9936?
It affects 1 product.
Products include Php Php.
How do I fix CVE-2016-9936?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2016-9936 being exploited?
There is no known exploitation of CVE-2016-9936 in the wild and no public exploit code.
Other vulnerabilities in Php Php
Sources
Also known as GHSA-jp9f-r2q5-mv5q, UBUNTU-CVE-2016-9936.