CVE-2017-7963 Denial of service in n/a
Attackers can cause denial of service via memory consumption and crashes in PHP GMP interfaces by processing long strings.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-7963?
CVE-2017-7963 is a high-severity denial of service vulnerability in Php Php, published on 19 Apr 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The GNU Multiple Precision Arithmetic Library (GMP) interfaces for PHP through 7.1.4 allow attackers to cause a denial of service (memory consumption and application crash) via operations on long strings. NOTE: the vendor disputes this, stating "There is no security issue here, because GMP safely aborts in case of an OOM condition. The only attack vector here is denial of service. However, if you allow attacker-controlled, unbounded allocations you have a DoS vector regardless of GMP's OOM behavior.
Weakness: CWE-770
Which versions are affected by CVE-2017-7963?
It affects 1 product.
Products include Php Php.
How do I fix CVE-2017-7963?
No fix has been published for CVE-2017-7963 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-7963 being exploited?
There is no known exploitation of CVE-2017-7963 in the wild and no public exploit code.
Other vulnerabilities in Php Php
Sources
Also known as GHSA-266p-jjrg-gmfx, UBUNTU-CVE-2017-7963.