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medium4.4

CVE-2009-1630

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 …

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
through 2.6.29.3
OpensuseOpensuse
Versions 11.0, 11.1
DebianDebian Linux
Versions 4.0, 5.0
CanonicalUbuntu Linux
Versions 6.06, 8.04, 8.10, 9.04
VmwareEsx
Versions 2.5.5, 3.0.3, 3.5, 4.0

Weakness classification

CWE-264

References