CVE-2013-5172 Denial of service in n/a

High 7.1 Published 24 Oct 2013 Updated 16 Sep 2024

Attackers can cause a system panic and denial of service in macOS kernels by triggering SHA-2 digest operations, particularly via IPSec connections.

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-2013-5172?

CVE-2013-5172 is a high-severity denial of service vulnerability in Apple Mac Os X, published on 24 Oct 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The kernel in Apple Mac OS X before 10.9 does not properly determine the output length for SHA-2 digest function calls, which allows context-dependent attackers to cause a denial of service (panic) by triggering a digest operation, as demonstrated by an IPSec connection.

Weakness: CWE-189

Which versions are affected by CVE-2013-5172?

It affects 1 product.

Products include Apple Mac Os X.

How do I fix CVE-2013-5172?

No fix has been published for CVE-2013-5172 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-2013-5172 being exploited?

There is no known exploitation of CVE-2013-5172 in the wild and no public exploit code.

All Apple Mac Os X vulnerabilities

Sources

Also known as GHSA-63qg-7jf5-x5hh.