Vulnerability Intelligence Report
CVE-2021-3930
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.
No Active Exploit Signals
CVSS Base Score
6.5
MEDIUM
EPSS Probability:0.34%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-193 ↗CWE-193
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| qemu | qemu | all |
| redhat | codeready_linux_builder | 8.0 |
| redhat | codeready_linux_builder_for_ibm_z_systems | 8.0 |
| redhat | codeready_linux_builder_for_power_little_endian | 8.0 |
| redhat | openstack | 10, 13 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux_advanced_virtualization_eus | 8.4 |
| redhat | enterprise_linux_for_ibm_z_systems | 8.0 |
| redhat | enterprise_linux_for_power_little_endian | 8.0 |
| debian | debian_linux | 9.0, 10.0 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.338%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Red Hat, Inc. · Vendor · USA |
| Reserved | 2021-11-05T00:00:00 |
| Published | 2022-02-18T17:50:48 |
| Last Updated | 2024-08-03T17:09:09 |
Community Chatter & Buzz