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CVE-2007-1189

7.2 · HIGH

Integer overflow in the envwrite function in the Alcatel-Lucent Bell Labs Plan 9 kernel allows local users to overwrite certain memory addresses with kernel memory via a large n argument, as demons…

Published Mar 2, 2007bell_labsEPSS 0.80%

Overview

CVE-2007-1189 is a high-severity vulnerability affecting bell_labs plan_9. It was published on March 2, 2007 and has a CVSS 2.0 base score of 7.2 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Integer overflow in the envwrite function in the Alcatel-Lucent Bell Labs Plan 9 kernel allows local users to overwrite certain memory addresses with kernel memory via a large n argument, as demonstrated by (1) modifying the iseve function to gain privileges and (2) making the devpermcheck function grant unrestricted device permissions.

Remediation

Check the references section for vendor advisories and patches from bell_labs. Update plan_9 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refkernelspace.us/itheft.cReflists.immunitysec.com/pipermail/dailydave/2007-February/004118.htmlRefosvdb.org/34956Refwww.securityfocus.com/bid/22749Refwww.exploit-db.com/exploits/3383Refkernelspace.us/itheft.cReflists.immunitysec.com/pipermail/dailydave/2007-February/004118.htmlRefosvdb.org/34956Refwww.securityfocus.com/bid/22749Refwww.exploit-db.com/exploits/3383

How CyberStrike helps

Frequently asked questions

What is CVE-2007-1189?

CVE-2007-1189 is a high-severity vulnerability affecting bell_labs plan_9. It was published on March 2, 2007 and has a CVSS 2.0 base score of 7.2 (HIGH).

How severe is CVE-2007-1189?

This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2007-1189?

Check the references section for vendor advisories and patches from bell_labs. Update plan_9 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2007-1189?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2007-1189 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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