CVE-2018-7226 Integer overflow in n/a

Critical 9.8 Published Updated

A missing sanitization in LibVNC allows attackers to trigger integer overflows via crafted packets, potentially causing crashes or code execution.

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-2018-7226?

CVE-2018-7226 is a critical vulnerability in n/a, published on 19 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in vcSetXCutTextProc() in VNConsole.c in LinuxVNC and VNCommand from the LibVNC/vncterm distribution through 0.9.10. Missing sanitization of the client-specified message length may cause integer overflow or possibly have unspecified other impact via a specially crafted VNC packet.

Weakness: CWE-190

Which versions are affected by CVE-2018-7226?

It affects 1 product.

Products include Vncterm Project Vncterm.

How do I fix CVE-2018-7226?

No fix has been published for CVE-2018-7226 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-7226 being exploited?

There is no known exploitation of CVE-2018-7226 in the wild and no public exploit code.

Sources

Also known as GHSA-8pmm-h92r-4qxw, UBUNTU-CVE-2018-7226.

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