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.
Metrics
CVSS 2.0 7.2/10
AV:L/AC:L/Au:N/C:C/I:C/A:CAffected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://kernelspace.us/itheft.cExploit
- http://lists.immunitysec.com/pipermail/dailydave/2007-February/004118.htmlExploit
- http://osvdb.org/34956
- http://www.securityfocus.com/bid/22749Exploit
- https://www.exploit-db.com/exploits/3383
- http://kernelspace.us/itheft.cExploit
- http://lists.immunitysec.com/pipermail/dailydave/2007-February/004118.htmlExploit
- http://osvdb.org/34956
- http://www.securityfocus.com/bid/22749Exploit
- https://www.exploit-db.com/exploits/3383
Timeline
- Published
- Mar 2, 2007
- Last modified
- Jun 16, 2026
- NVD status
- Modified