CVE-2007-1189
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...
- Published
- Mar 2, 2007
- Updated
- Aug 7, 2024
- Assigning CNA
- mitre
- Evidence observed
- Feb 28, 2007
Primary CVSS
nvd · CVSS 2.0
AV:L/AC:L/Au:N/C:C/I:C/A:CLow · next 30 days
- Percentile
- 53.5%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Don Bailey · plan9 · Feb 28, 2007
Responsible use
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