CVE-2021-43003 Integer overflow in n/a

High 8.8 Published Updated

Local attackers can execute arbitrary kernel-mode code or cause a system crash via a crafted I/O Request Packet in the zPortal Windows zClient.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-43003?

CVE-2021-43003 is a high-severity vulnerability in n/a, published on 7 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Amzetta zPortal Windows zClient is affected by Integer Overflow. IOCTL Handler 0x22001B in the Amzetta zPortal Windows zClient <= v3.2.8180.148 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

Weakness: CWE-190

Which versions are affected by CVE-2021-43003?

It affects 1 product.

Products include Amzetta Zportal Windows Zclient.

How do I fix CVE-2021-43003?

No fix has been published for CVE-2021-43003 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-43003 being exploited?

There is no known exploitation of CVE-2021-43003 in the wild and no public exploit code.

Sources

Also known as GHSA-52m7-gvgw-j355.

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