CVE-2020-25111 Memory corruption in n/a

Critical 9.8 Published Updated

Attackers can cause denial of service or execute code via crafted ICMPv6 packets due to insufficient header length checks in Contiki.

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-2020-25111?

CVE-2020-25111 is a critical memory corruption vulnerability in n/a, published on 11 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in the IPv6 stack in Contiki through 3.0. There is an insufficient check for the IPv6 header length. This leads to Denial-of-Service and potential Remote Code Execution via a crafted ICMPv6 echo packet.

Weakness: CWE-787

Which versions are affected by CVE-2020-25111?

It affects 1 product.

Products include Contiki-Os Contiki-Os.

How do I fix CVE-2020-25111?

No fix has been published for CVE-2020-25111 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-2020-25111 being exploited?

There is no known exploitation of CVE-2020-25111 in the wild and no public exploit code.

Sources

Also known as GHSA-5h56-5v9q-6vx2.

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