CVE-2021-3392
Fixed in a distro release EPSS <1%
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.
Products: qemu, fedoraproject fedora, debian_linux
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux 2 | ivshmem-tools | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-audio-alsa | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-audio-oss | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-audio-pa | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-audio-sdl | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-block-curl | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-block-dmg | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-block-iscsi | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-block-nfs | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-block-rbd | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-block-ssh | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-common | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-guest-agent | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-img | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-kvm | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-kvm-core | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-system-aarch64 | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-system-aarch64-core | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-system-x86 | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-system-x86-core | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-ui-curses | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-ui-gtk | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-ui-sdl | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-user | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-user-binfmt | 10:3.1.0-8.amzn2.0.10 |
| Amazon Linux 2 | qemu-user-static | 10:3.1.0-8.amzn2.0.10 |
| Debian 10 | qemu | 1:3.1+dfsg-8+deb10u9 |
| Debian 12 | qemu | 1:5.2+dfsg-10 |
| Debian 13 | qemu | 1:5.2+dfsg-10 |
| Debian 14 | qemu | 1:5.2+dfsg-10 |
| Debian 9 | qemu | 1:2.8+dfsg-6+deb9u14 |
| Ubuntu 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.37 |
| Ubuntu 20.04 LTS | qemu | 1:4.2-3ubuntu6.17 |