Unrated severityNVD Advisory· Published Aug 12, 2002· Updated Jun 16, 2026
CVE-2002-0820
CVE-2002-0820
Description
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.
Affected products
2Patches
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4News mentions
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