CVE-2021-39536 Memory corruption in n/a

High 8.8 Published Updated

A heap-based buffer overflow in the libxsmm JIT code allows attackers to execute arbitrary code or cause denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2021-39536?

CVE-2021-39536 is a high-severity memory corruption vulnerability in n/a, published on 20 Sep 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.

Weakness: CWE-787

Which versions are affected by CVE-2021-39536?

It affects 1 product.

Products include Libxsmm Project Libxsmm.

How do I fix CVE-2021-39536?

Upgrade to a fixed version.

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

Is CVE-2021-39536 being exploited?

There is no known exploitation of CVE-2021-39536 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2021-39536, GHSA-h9fc-rg7x-48xg.

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