CVE-2019-8280 Memory corruption in UltraVNC

Critical 9.8 Published Updated

An out-of-bounds access vulnerability in the UltraVNC client's RAW decoder allows remote attackers to execute arbitrary code via network connectivity.

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-2019-8280?

CVE-2019-8280 is a critical memory corruption vulnerability in Kaspersky Lab UltraVNC, published on 9 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

UltraVNC revision 1203 has out-of-bounds access vulnerability in VNC client inside RAW decoder, which can potentially result code execution. This attack appear to be exploitable via network connectivity. This vulnerability has been fixed in revision 1204.

Weakness: CWE-787, CWE-125, CWE-788

Which versions are affected by CVE-2019-8280?

It affects 1 product.

Products include Uvnc Ultravnc.

How do I fix CVE-2019-8280?

No fix has been published for CVE-2019-8280 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-2019-8280 being exploited?

There is no known exploitation of CVE-2019-8280 in the wild and no public exploit code.

Sources

Also known as GHSA-gmgq-jwhh-9xrh.

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