CVE-2017-12932 Use after free in n/a
A heap use-after-free vulnerability in PHP's unserializer allows attackers to potentially execute arbitrary code via untrusted data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-12932?
CVE-2017-12932 is a critical use after free vulnerability in Php Php, published on 18 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ext/standard/var_unserializer.re in PHP 7.0.x through 7.0.22 and 7.1.x through 7.1.8 is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an unspecified impact on the integrity of PHP.
Weakness: CWE-416
Which versions are affected by CVE-2017-12932?
It affects 1 product.
Products include Php Php.
How do I fix CVE-2017-12932?
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-2017-12932 being exploited?
There is no known exploitation of CVE-2017-12932 in the wild and no public exploit code.
Other vulnerabilities in Php Php
Sources
Also known as GHSA-3w3q-r4qc-93xr, UBUNTU-CVE-2017-12932.