CVE-2016-7742 Memory corruption in n/a

High 7.8 Published Updated

Remote attackers can execute arbitrary code on macOS systems by exploiting uninitialized memory in the xar component via a crafted archive.

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-2016-7742?

CVE-2016-7742 is a high-severity memory corruption vulnerability in Apple Mac Os X, published on 20 Feb 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. macOS before 10.12.2 is affected. The issue involves the "xar" component, which allows remote attackers to execute arbitrary code via a crafted archive that triggers use of uninitialized memory locations.

Weakness: CWE-20

Which versions are affected by CVE-2016-7742?

It affects 1 product.

Products include Apple Mac Os X.

How do I fix CVE-2016-7742?

No fix has been published for CVE-2016-7742 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-2016-7742 being exploited?

There is no known exploitation of CVE-2016-7742 in the wild and no public exploit code.

All Apple Mac Os X vulnerabilities

Sources

Also known as GHSA-w2p3-j7fr-c39q.

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