| Name | CVE-2021-3392 |
| Description | A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2623-1, DLA-3099-1 |
| Debian Bugs | 984449 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| qemu (PTS) | bullseye | 1:5.2+dfsg-11+deb11u3 | fixed |
| bullseye (security) | 1:5.2+dfsg-11+deb11u5 | fixed | |
| bookworm | 1:7.2+dfsg-7+deb12u16 | fixed | |
| bookworm (security) | 1:7.2+dfsg-7+deb12u15 | fixed | |
| trixie | 1:10.0.3+ds-0+deb13u1 | fixed | |
| trixie (security) | 1:10.0.2+ds-2+deb13u1 | fixed | |
| forky | 1:10.1.0+ds-2 | fixed | |
| sid | 1:10.1.0+ds-5 | 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+deb9u14 | DLA-2623-1 | ||
| qemu | source | buster | 1:3.1+dfsg-8+deb10u9 | DLA-3099-1 | ||
| qemu | source | (unstable) | 1:5.2+dfsg-10 | 984449 |
https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg00488.html
https://bugs.launchpad.net/qemu/+bug/1914236
https://git.qemu.org/?p=qemu.git;a=commit;h=3791642c8d60029adf9b00bcb4e34d7d8a1aea4d