CVEvulnerability
CVE-2002-0820
7.2 HIGH
Official page ↗
- Status
- Modified
- Published
- 2002-08-12
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
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 configurations
• freebsd freebsd 4.6
References
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.asc ftp.freebsd.org
- http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0047.html 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 groups.google.com
- http://marc.info/?l=bugtraq&m=102979180524452&w=2 marc.info
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.asc ftp.freebsd.org
- http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0047.html 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 groups.google.com
- http://marc.info/?l=bugtraq&m=102979180524452&w=2 marc.info