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MEDIUM · 5.5

CVE-2017-2620

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cput...

Vulnerability Description

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on 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< 2.8.0
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
XenXen<= 4.7.1

Related Weaknesses (CWE)

CWE-125CWE-787

References

FAQ

What is CVE-2017-2620?

CVE-2017-2620 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cput...

How severe is CVE-2017-2620?

CVE-2017-2620 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-2017-2620?

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.