# CVE-2019-12068: qemu: 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+dfs...

CVE-2019-12068 is fixed in 20 products on 1 platform, first by qemu 1:2.11+dfsg-1ubuntu7.20, released September 24, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-12068
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0051
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 24, 2019

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | qemu Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-block-extra Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-block-extra 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-block-extra-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-block-extra Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-block-extra 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-block-extra-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-guest-agent Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-guest-agent 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-guest-agent-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-guest-agent Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-guest-agent 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-guest-agent-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-kvm Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-kvm 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-kvm-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-kvm Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-kvm 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-kvm-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-system 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-system-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-system Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-arm Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-system-arm 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-system-arm-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-system-arm Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-arm 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-arm-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-common Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-system-common 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-system-common-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-system-common Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-common 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-common-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-data Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-data 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-data-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-gui Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-gui 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-gui-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-mips Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-system-mips 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-system-mips-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-system-mips Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-mips 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-mips-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-misc Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-system-misc 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-system-misc-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-system-misc Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-misc 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-misc-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-ppc Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-system-ppc 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-system-ppc-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-system-ppc Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-ppc 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-ppc-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-s390x Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-system-s390x 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-system-s390x-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-system-s390x Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-s390x 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-s390x-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-sparc Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-system-sparc 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-system-sparc-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-system-sparc Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-sparc 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-sparc-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-x86 Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-system-x86 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-system-x86-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-system-x86 Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-x86 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-x86-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-system-x86-xen Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-system-x86-xen 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-system-x86-xen-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-user Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-user 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-user-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-user Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-user 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-user-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-user-binfmt Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-user-binfmt 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-user-binfmt-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-user-binfmt Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-user-binfmt 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-user-binfmt-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-user-static Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-user-static 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-user-static-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-user-static Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-user-static 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-user-static-1-4.2-1ubuntu1.md) | Sep 24, 2019 |
| Linux | qemu-utils Ubuntu 18.04.6 LTS (bionic) | 1:2.11+dfsg-1ubuntu7.20 | [qemu-utils 1:2.11+dfsg-1ubuntu7.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-qemu-utils-1-2.11-dfsg-1ubuntu7.20.md) | Sep 24, 2019 |
| Linux | qemu-utils Ubuntu 20.04 LTS (focal) | 1:4.2-1ubuntu1 | [qemu-utils 1:4.2-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-qemu-utils-1-4.2-1ubuntu1.md) | Sep 24, 2019 |

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