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.
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History
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Information
Published : 2007-03-02 21:18
Updated : 2025-04-09 00:30
NVD link : CVE-2007-1189
Mitre link : CVE-2007-1189
CVE.ORG link : CVE-2007-1189
JSON object : View
Products Affected
bell_labs
- plan_9
CWE