CVE-2002-0820

Published: Aug 12, 2002Modified: Apr 16, 2026

7.2

Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability: 3.9 / Impact: 10.0

Source: NVD

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 (1)

Products: Freebsd: Freebsd

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Freebsd Freebsd	Version 4.6

References (8)

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.asc (unsafe URL)

Source: cve@mitre.org

http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0047.html

Source: cve@mitre.org

Vendor Advisory

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&frame=right&th=d429cd2ef1d3a2b7&seekm=ai6c0q%242289%241%40FreeBSD.csie.NCTU.edu.tw#link16

Source: cve@mitre.org

http://marc.info/?l=bugtraq&m=102979180524452&w=2

Source: cve@mitre.org

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.asc (unsafe URL)

Source: af854a3a-2127-422b-91ae-364da2661108

http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0047.html

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&frame=right&th=d429cd2ef1d3a2b7&seekm=ai6c0q%242289%241%40FreeBSD.csie.NCTU.edu.tw#link16

Source: af854a3a-2127-422b-91ae-364da2661108

http://marc.info/?l=bugtraq&m=102979180524452&w=2

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.