description: Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host.
problem types: CWE-787
affected:
{
product: display
vendor: qemu
versions:
status: affected, version: n/a
}
metrics:
cvssV3_0: [
attackComplexity: HIGH
attackVector: ADJACENT_NETWORK
availabilityImpact: LOW
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: LOW
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
version: 3.0
]