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The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux kernel 2.6.29.3 and earlier when atomic_open is available does not check execute (aka EXEC or MAY_EXEC) permission bits which allows local users to bypass permissions and execute files as demonstrated by files on an NFSv4 fileserver.

oval:org.mitre.oval:def:9990

The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux kernel 2.6.29.3 and earlier when atomic_open is available does not check execute (aka EXEC or MAY_EXEC) permission bits which allows local users to bypass permissions and execute files as demonstrated by files on an NFSv4 fileserver.

Family:
unix
Status:
ACCEPTED
Platform(s):
  • Red Hat Enterprise Linux 5
  • Oracle Linux 4
  • CentOS Linux 5
  • CentOS Linux 4
  • Oracle Linux 5
  • Red Hat Enterprise Linux 4
Class:
vulnerability
Reference(s):
  • CVE-2009-1630
Product(s):