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TI-2009-01546 Aliases CVE-2009-1630GHSA-v8g3-vj55-5p7v

The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux…

Priority LOW 21CWE-264Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Security bypass
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.

Summary

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.

Why it matters now

EPSS 0.00485 42nd percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix Fixed Red Hat: 3 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 2.6.29.3VulnerableLinux
cpe:2.3:o:opensuse:opensuse:11.0:*:*:*:*:*:*:*11.0VulnerableopenSUSE
cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:*11.1VulnerableopenSUSE
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*4.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*5.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*6.06VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:*:*:*:*8.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*8.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*9.04VulnerableCanonical
cpe:2.3:o:vmware:esx:2.5.5:*:*:*:*:*:*:*2.5.5VulnerableVMware
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 2.6.29.3 Vulnerable ·Linux
  • cpe:2.3:o:opensuse:opensuse:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·openSUSE
  • cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:* Versions 11.1 Vulnerable ·openSUSE
  • cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* Versions 6.06 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:*:*:*:* Versions 8.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:* Versions 8.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:* Versions 9.04 Vulnerable ·Canonical
  • cpe:2.3:o:vmware:esx:2.5.5:*:*:*:*:*:*:* Versions 2.5.5 Vulnerable ·VMware
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:vmware:esx:3.0.3:*:*:*:*:*:*:*3.0.3VulnerableVMware
cpe:2.3:o:vmware:esx:3.5:*:*:*:*:*:*:*3.5VulnerableVMware
cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:*4.0VulnerableVMware
  • cpe:2.3:o:vmware:esx:3.0.3:*:*:*:*:*:*:* Versions 3.0.3 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esx:3.5:*:*:*:*:*:*:* Versions 3.5 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·VMware

Remediation

Red Hat 3 advisories

  • RHSA-2009:1157 Released 2009-07-14 · Red Hat rating Important
    kernel-rt security and bug fix update
    • MRG Realtime for RHEL 5 Server kernel-rt-2.6.24.7-126.el5rt, kernel-rt-debug-2.6.24.7-126.el5rt, kernel-rt-debug-devel-2.6.24.7-126.el5rt +6
  • RHSA-2009:1132 Released 2009-06-30 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux AS version 4 kernel-2.6.9-89.0.3.EL, kernel-2.6.9-89.0.3.EL.ia64, kernel-2.6.9-89.0.3.EL.ppc64iseries +14
    • Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-89.0.3.EL, kernel-devel-2.6.9-89.0.3.EL, kernel-doc-2.6.9-89.0.3.EL +8
    • Red Hat Enterprise Linux ES version 4 kernel-2.6.9-89.0.3.EL, kernel-2.6.9-89.0.3.EL.ia64, kernel-devel-2.6.9-89.0.3.EL +12
    • Red Hat Enterprise Linux WS version 4 kernel-2.6.9-89.0.3.EL, kernel-2.6.9-89.0.3.EL.ia64, kernel-devel-2.6.9-89.0.3.EL +12
  • RHSA-2009:1106 Released 2009-06-16 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-128.1.14.el5, kernel-2.6.18-128.1.14.el5.ia64, kernel-PAE-2.6.18-128.1.14.el5 +18
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-128.1.14.el5, kernel-PAE-2.6.18-128.1.14.el5, kernel-PAE-devel-2.6.18-128.1.14.el5 +8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
MRG Realtime for RHEL 5 ServerFixed RHSA-2009:1157
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2009:1106
Red Hat Enterprise Linux AS version 4Fixed RHSA-2009:1132
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2009:1106
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2009:1132
Red Hat Enterprise Linux ES version 4Fixed RHSA-2009:1132
Red Hat Enterprise Linux WS version 4Fixed RHSA-2009:1132

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-1630
  2. 2026-10-03 Alias added: GHSA-v8g3-vj55-5p7v

References

Exploit 3

Patch 2

Advisory 11

Other 5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences