CVE-2016-7636 Denial of service in n/a

Medium 5.9 Published Updated

Man-in-the-middle attackers can cause application crashes in Apple operating systems via malicious OCSP responder URLs.

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-2016-7636?

CVE-2016-7636 is a medium-severity denial of service vulnerability in Apple Iphone Os, published on 20 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in certain Apple products. iOS before 10.2 is affected. macOS before 10.12.2 is affected. watchOS before 3.1.3 is affected. The issue involves the "Security" component, which allows man-in-the-middle attackers to cause a denial of service (application crash) via vectors related to OCSP responder URLs.

Weakness: CWE-20

Which versions are affected by CVE-2016-7636?

It affects 3 products.

Products include Apple Iphone Os, Apple Mac Os X, Apple Watchos.

How do I fix CVE-2016-7636?

No fix has been published for CVE-2016-7636 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-2016-7636 being exploited?

There is no known exploitation of CVE-2016-7636 in the wild and no public exploit code.

All Apple Iphone Os vulnerabilities

Sources

Also known as GHSA-8552-55hc-5r4x.

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