CVE-2016-0749

The smartcard interaction in SPICE allows remote attackers to cause a denial of service (QEMU-KVM process crash) or possibly execute arbitrary code via vectors…

published June 9, 2016

CVSS
—
EPSS
8%
Percentile
95.0
In the wild
Unconfirmed
What it is

⚠️ A remote attack could lead to a crash in your QEMU-KVM processes! This vulnerability in SPICE could leave your virtual machines in a world of hurt. 🔥 Think of it like a crowded restaurant where a waiter accidentally spills water on the circuit breaker — everything goes dark and chaos ensues. Similarly, this buffer overflow can crash your processes when a connection gets tangled with a guest VM. If exploited, this vulnerability could result in a denial of service, causing your virtual machine to crash unexpectedly. Worst case, it might even allow an attacker to execute arbitrary code, giving them more power than they should have! That's a recipe for disaster in your environment!

Put simply

Think of it like a crowded restaurant where a waiter accidentally spills water on the circuit breaker — everything goes dark and chaos ensues. Similarly, this buffer overflow can crash your processes when a connection gets tangled with a guest VM. The CVE-2016-0749 vulnerability is a heap-based buffer overflow that occurs during smartcard interactions in SPICE when connecting to a guest VM, leading to potential crashes or unauthorized code execution.

What to do

If exploited, this vulnerability could result in a denial of service, causing your virtual machine to crash unexpectedly. Worst case, it might even allow an attacker to execute arbitrary code, giving them more power than they should have! That's a recipe for disaster in your environment! To protect yourself, ensure SPICE is updated to the latest version, which addresses this vulnerability. Additionally, review your guest VM configurations to minimize risk exposure. Regularly audit your virtual machine environments to catch any potential issues early! You've got this! Follow these steps, and you'll have your virtual machines secured in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.08492 · 95.0th percentile
Published
2016-06-09T16:00Z
EPSS history
Timeline
  • 09 JUN 16:00Z
    The smartcard interaction in SPICE allows remote attackers to cause a denial of service (QEMU-KVM process crash) or possibly execute arbitrary code via vectors…
    cvelistv5