VULNERABILITY INTELLIGENCE

CVE-2021-3930

CVSS score6.5 MEDIUM
EPSS probability0.34%
CISA KEVNot currently listed
Published2022-02-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Description

An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.

Weakness classification

  • secalert@redhat.com: CWE-193
  • nvd@nist.gov: CWE-193

Primary references