CVE-2019-8264 Memory corruption in UltraVNC
An out-of-bounds access vulnerability in the UltraVNC client 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-2019-8264?
CVE-2019-8264 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 Ultra2 decoder, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1204.
Which versions are affected by CVE-2019-8264?
It affects 1 product.
Products include Uvnc Ultravnc.
How do I fix CVE-2019-8264?
No fix has been published for CVE-2019-8264 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-2019-8264 being exploited?
There is no known exploitation of CVE-2019-8264 in the wild and no public exploit code.
Other vulnerabilities in Kaspersky Lab UltraVNC
Sources
Also known as GHSA-mv4r-mvcw-2mxv.