CVE-2018-18438: Qemu

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.

Affected products

• Qemu Qemu: affected versions not specified
• Red Hat Enterprise Linux: version 6.0 only; version 7.0 only
• Red Hat Openstack: version 8 only; version 9 only; version 10 only; version 12 only; version 13 only

Published 2018-10-19. Last modified 2026-06-17.