vulnwire
7.2high

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 descript…

Published 24 y ago · modified 4 mo ago · JSON

CVSS
7.2
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 36%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

0.41% probability of exploitation in the next 30 days, higher than 36% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.07.2AV:L/AC:L/Au:N/C:C/I:C/A:C

References

  • groups.google.com /groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&frame=right&th=d429cd2ef1d3a2b7&seekm=ai6c0q%242289%24 · x_refsource_MISC, x_transferred
  • archives.neohapsis.com /archives/vulnwatch/2002-q3/0047.html · mailing-list, x_refsource_VULNWATCH, x_transferred
  • marc.info /?l=bugtraq&m=102979180524452&w=2 · mailing-list, x_refsource_BUGTRAQ, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.