CVE-2009-1630

Published May 14, 2009

Last updated 4 years ago

Overview

Description
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.
Source
cve@mitre.org
NVD status
Analyzed

Social media

Hype score
Not currently trending

Risk scores

CVSS 2.0

Type
Primary
Base score
4.4
Impact score
6.4
Exploitability score
3.4
Vector string
AV:L/AC:M/Au:N/C:P/I:P/A:P

Weaknesses

nvd@nist.gov
CWE-264

Vendor comments

  • Red HatThis issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, and 3. It was addressed in Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2009-1132.html , https://rhn.redhat.com/errata/RHSA-2009-1106.html , and https://rhn.redhat.com/errata/RHSA-2009-1157.html .

Configurations

References