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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 0.41% probability · 35th percentile
- CISA KEV
- Not listed
- Affected
- freebsd/freebsd
- Source
- cve@mitre.org
References
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.asc
- http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0047.htmlVendor 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
- http://marc.info/?l=bugtraq&m=102979180524452&w=2
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.asc
- http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0047.htmlVendor 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
- http://marc.info/?l=bugtraq&m=102979180524452&w=2
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.