CVE-2002-0820

FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.

Score

CVSS 2.0 7.2 High

Status

Modified - cve@mitre.org

Published

2002-08-12

Last modified

2024-08-08

Affected products

• Freebsd (Freebsd)

References

• http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0047.html
• http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&frame=right&th=d429cd2ef1d3a2b7&seekm=ai6c0q%242289%241%40F…
• http://marc.info/?l=bugtraq&m=102979180524452&w=2