CVE-2021-3930

MEDIUM

QEMU < 6.2.0 - Denial of Service via SCSI MODE SELECT Command

Title source: llm
STIX 2.1

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.

References (5)

Core 5
Core References
Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2020588
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20220225-0007/
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202208-27
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html

Scores

CVSS v3 6.5
EPSS 0.0033
EPSS Percentile 24.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Details

CWE
CWE-193
Status published
Products (12)
debian/debian_linux 9.0
debian/debian_linux 10.0
qemu/qemu < 6.2.0
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/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
... and 2 more
Published Feb 18, 2022
Tracked Since Feb 18, 2026