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.
Max CVSS
7.2
EPSS Score
0.04%
Published
2007-03-02
Updated
2017-10-11
1 vulnerabilities found
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