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MEDIUM · 5.5

CVE-2016-9603

A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a V...

Vulnerability Description

A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.

CVSS Score

5.5

MEDIUM

CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW

Affected Products

VendorProductVersions
QemuQemu< 2.9.0
CitrixXenserver6.0.2
RedhatOpenstack5.0
DebianDebian Linux7.0
RedhatEnterprise Linux Desktop6.0
RedhatEnterprise Linux Server6.0
RedhatEnterprise Linux Server Aus7.3
RedhatEnterprise Linux Server Eus7.3
RedhatEnterprise Linux Workstation6.0

Related Weaknesses (CWE)

CWE-122CWE-119

References

FAQ

What is CVE-2016-9603?

CVE-2016-9603 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a V...

How severe is CVE-2016-9603?

CVE-2016-9603 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-9603?

Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Citrix Xenserver, Redhat Openstack, Debian Debian Linux, Redhat Enterprise Linux Desktop.