| Name | CVE-2021-3930 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DLA-2970-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| qemu (PTS) | stretch | 1:2.8+dfsg-6+deb9u9 | vulnerable |
| stretch (security) | 1:2.8+dfsg-6+deb9u17 | fixed | |
| buster, buster (security) | 1:3.1+dfsg-8+deb10u8 | vulnerable | |
| bullseye | 1:5.2+dfsg-11+deb11u1 | vulnerable | |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | vulnerable | |
| bookworm, sid | 1:7.0+dfsg-7 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| qemu | source | stretch | 1:2.8+dfsg-6+deb9u17 | DLA-2970-1 | ||
| qemu | source | (unstable) | 1:6.2+dfsg-1 |
[bullseye] - qemu <postponed> (Minor issue)
[buster] - qemu <postponed> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2020588
https://gitlab.com/qemu-project/qemu/-/issues/546
Fixed by: https://gitlab.com/qemu-project/qemu/-/commit/b3af7fdf9cc537f8f0dd3e2423d83f5c99a457e8 (v6.2.0-rc0)