In QEMU 1:4.1-1, 1:2.1+dfsg-12+deb8u6, 1:2.8+dfsg-6+deb9u8, 1:3.1+dfsg-8~deb10u1, 1:3.1+dfsg-8+deb10u2, and 1:2.1+dfsg-12+deb8u12 (fixed), when executing script in lsi_execute_script(), the LSI scsi adapter emulator advances s->dsp index to read next opcode. This can lead to an infinite loop if the next opcode is empty. Move the existing loop exit after 10k iterations so that it covers no-op opcodes as well.
Weakness
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Qemu | Qemu | 1:4.1-1 (including) | 1:4.1-1 (including) |
| Qemu | Ubuntu | bionic | * |
| Qemu | Ubuntu | devel | * |
| Qemu | Ubuntu | disco | * |
| Qemu | Ubuntu | eoan | * |
| Qemu | Ubuntu | esm-infra-legacy/trusty | * |
| Qemu | Ubuntu | esm-infra/bionic | * |
| Qemu | Ubuntu | esm-infra/focal | * |
| Qemu | Ubuntu | esm-infra/xenial | * |
| Qemu | Ubuntu | focal | * |
| Qemu | Ubuntu | groovy | * |
| Qemu | Ubuntu | hirsute | * |
| Qemu | Ubuntu | trusty | * |
| Qemu | Ubuntu | trusty/esm | * |
| Qemu | Ubuntu | upstream | * |
| Qemu | Ubuntu | xenial | * |
| Qemu-kvm | Ubuntu | precise/esm | * |
| Qemu-kvm | Ubuntu | trusty | * |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00038.html
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=de594e47659029316bbf9391efb79da0a1a08e08
- https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
- https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01518.html
- https://security-tracker.debian.org/tracker/CVE-2019-12068
- https://usn.ubuntu.com/4191-1/
- https://usn.ubuntu.com/4191-2/
- https://www.debian.org/security/2020/dsa-4665
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00038.html
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=de594e47659029316bbf9391efb79da0a1a08e08
- https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
- https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01518.html
- https://security-tracker.debian.org/tracker/CVE-2019-12068
- https://usn.ubuntu.com/4191-1/
- https://usn.ubuntu.com/4191-2/
- https://www.debian.org/security/2020/dsa-4665