CVE-2017-2620
Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo
Severity
ImportantRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · February 21, 2017
Updated · June 30, 2026
Description
Quick emulator (QEMU) 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 applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 5.5CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
CVSS 2.0 · 4.9AV:A/AC:M/Au:S/C:P/I:P/A:P
CWE-787 · Out-of-bounds Write