CVE-2020-18734 Memory corruption in n/a

High 7.5 Published Updated

A stack buffer overflow in the Cyclone DDS library allows attackers to crash the DDS subscriber server, causing a denial of service.

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-2020-18734?

CVE-2020-18734 is a high-severity memory corruption vulnerability in n/a, published on 23 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A stack buffer overflow in /ddsi/q_bitset.h of Eclipse IOT Cyclone DDS Project v0.1.0 causes the DDS subscriber server to crash.

Weakness: CWE-787

Which versions are affected by CVE-2020-18734?

It affects 1 product.

Products include Eclipse Cyclone Data Distribution Service.

How do I fix CVE-2020-18734?

No fix has been published for CVE-2020-18734 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-2020-18734 being exploited?

There is no known exploitation of CVE-2020-18734 in the wild and no public exploit code.

Sources

Also known as GHSA-276f-9fcq-7wmm, UBUNTU-CVE-2020-18734.

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