CVE-2017-13855 Memory corruption in n/a

Medium 5.5 Published Updated

Attackers can bypass memory-read restrictions and access sensitive data via a crafted app exploiting type confusion in the Apple OS kernel.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2017-13855?

CVE-2017-13855 is a medium-severity memory corruption vulnerability in Apple Iphone Os, published on 25 Dec 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

An issue was discovered in certain Apple products. iOS before 11.2 is affected. macOS before 10.13.2 is affected. tvOS before 11.2 is affected. watchOS before 4.2 is affected. The issue involves the "Kernel" component. It allows attackers to bypass intended memory-read restrictions via a crafted app that triggers type confusion.

Weakness: CWE-704

Which versions are affected by CVE-2017-13855?

It affects 4 products.

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

How do I fix CVE-2017-13855?

No fix has been published for CVE-2017-13855 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-13855 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-13855 exists.

Public exploit code: 1 Exploit-DB entry.

All Apple Iphone Os vulnerabilities

Sources

Also known as GHSA-jwvc-gc5c-g22h.

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