CVE-2020-11683 Information disclosure in n/a

Medium 6.8 Published Updated

Attackers with physical access can exploit a timing side channel to forge CMAC values and boot arbitrary code on affected systems.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-11683?

CVE-2020-11683 is a medium-severity vulnerability in n/a, published on 14 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A timing side channel was discovered in AT91bootstrap before 3.9.2. It can be exploited by attackers with physical access to forge CMAC values and subsequently boot arbitrary code on an affected system.

Weakness: CWE-203

Which versions are affected by CVE-2020-11683?

It affects 1 product.

Products include Linux4sam At91bootstrap.

How do I fix CVE-2020-11683?

No fix has been published for CVE-2020-11683 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-11683 being exploited?

There is no known exploitation of CVE-2020-11683 in the wild and no public exploit code.

Sources

Also known as GHSA-wrjw-6w8m-xcwh.

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