CVE-2019-20566 Memory corruption in n/a

Critical 9.8 Published Updated

Attackers can trigger stack corruption in the Shannon modem via crafted addresses, potentially leading to code execution or denial of service on Samsung mobile devices.

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-2019-20566?

CVE-2019-20566 is a critical memory corruption vulnerability in n/a, published on 24 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered on Samsung mobile devices with any (before September 2019 for SMP1300 Exynos modem chipsets) software. Attackers can trigger stack corruption in the Shannon modem via a crafted RP-Originator/Destination address. The Samsung ID is SVE-2019-14858 (September 2019).

Weakness: CWE-787

Which versions are affected by CVE-2019-20566?

It affects 1 product.

Products include Samsung Exynos Smp1300.

How do I fix CVE-2019-20566?

No fix has been published for CVE-2019-20566 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-2019-20566 being exploited?

There is no known exploitation of CVE-2019-20566 in the wild and no public exploit code.

Sources

Also known as GHSA-c25p-4rwf-hhq6.

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