CVE-2016-7127 Memory corruption in n/a
Remote attackers can trigger an out-of-bounds write in the PHP GD extension's imagegammacorrect function, causing denial of service or potential code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-7127?
CVE-2016-7127 is a critical memory corruption vulnerability in Php Php, published on 12 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The imagegammacorrect function in ext/gd/gd.c in PHP before 5.6.25 and 7.x before 7.0.10 does not properly validate gamma values, which allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact by providing different signs for the second and third arguments.
Weakness: CWE-787
Which versions are affected by CVE-2016-7127?
It affects 1 product.
Products include Php Php.
How do I fix CVE-2016-7127?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2016-7127 being exploited?
There is no known exploitation of CVE-2016-7127 in the wild and no public exploit code.
Other vulnerabilities in Php Php
Sources
Also known as GHSA-75cj-4w7q-6p82, UBUNTU-CVE-2016-7127.