CVE-2021-3930
Published: 18 February 2022
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
qemu Launchpad, Ubuntu, Debian |
bionic |
Released
(1:2.11+dfsg-1ubuntu7.39)
|
| hirsute |
Ignored
(end of life)
|
|
| upstream |
Needs triage
|
|
| focal |
Released
(1:4.2-3ubuntu6.21)
|
|
| impish |
Released
(1:6.0+dfsg-2expubuntu1.2)
|
|
| trusty |
Released
(2.0.0+dfsg-2ubuntu1.47+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| xenial |
Released
(1:2.5+dfsg-5ubuntu10.51+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| jammy |
Released
(1:6.2+dfsg-2ubuntu5)
|
|
| kinetic |
Released
(1:6.2+dfsg-2ubuntu5)
|
|
|
Patches: upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=b3af7fdf9cc537f8f0dd3e2423d83f5c99a457e8 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |