CVE-2019-15683 Memory corruption in TurboVNC

Critical 9.8 Published Updated

An authenticated remote attacker can exploit a stack buffer overflow in TurboVNC server to execute arbitrary code.

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-2019-15683?

CVE-2019-15683 is a critical memory corruption vulnerability in Kaspersky TurboVNC, published on 29 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

TurboVNC server code contains stack buffer overflow vulnerability in commit prior to cea98166008301e614e0d36776bf9435a536136e. This could possibly result into remote code execution, since stack frame is not protected with stack canary. This attack appear to be exploitable via network connectivity. To exploit this vulnerability authorization on server is required. These issues have been fixed in commit cea98166008301e614e0d36776bf9435a536136e.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2019-15683?

It affects 1 product.

Products include Turbovnc Turbovnc.

How do I fix CVE-2019-15683?

No fix has been published for CVE-2019-15683 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-2019-15683 being exploited?

There is no known exploitation of CVE-2019-15683 in the wild and no public exploit code.

Sources

Also known as GHSA-g26v-2w7v-m2qp.

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