The gfs2_lock function in the Linux kernel before 2.6.34-rc1-next-20100312, and the…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.
Summary
The gfs2_lock function in the Linux kernel before 2.6.34-rc1-next-20100312, and the gfs_lock function in the Linux kernel on Red Hat Enterprise Linux (RHEL) 5 and 6, does not properly remove POSIX locks on files that are setgid without group-execute permission, which allows local users to cause a denial of service (BUG and system crash) by locking a file on a (1) GFS or (2) GFS2 filesystem, and then changing this file's permissions.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 2.6.33.1 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Debian |
| cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 2.6.33.1 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Debian
- cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
Remediation
Red Hat 6 advisories
- RHSA-2010:0521 Released 2010-07-08 · Red Hat rating Moderategfs-kmod security update
- RHEL Cluster-Storage (v. 5.4.Z server) gfs-kmod-0.1.34-2.el5_4.3, kmod-gfs-0.1.34-2.el5_4.3, kmod-gfs-0.1.34-2.el5_4.3.ia64 +3
- RHSA-2010:0380 Released 2010-04-27 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux EUS (v. 5.4 server) kernel-2.6.18-164.17.1.el5, kernel-2.6.18-164.17.1.el5.ia64, kernel-PAE-2.6.18-164.17.1.el5 +14
- RHSA-2010:0331 Released 2010-03-30 · Red Hat rating ModerateGFS-kernel security and bug fix update
- Red Hat Global File System 4AS GFS-kernel-2.6.9-85.2.el4_8.10, GFS-kernel-2.6.9-85.2.el4_8.10.ia64, GFS-kernel-hugemem-2.6.9-85.2.el4_8.10 +5
- Red Hat Global File System 4ES GFS-kernel-2.6.9-85.2.el4_8.10, GFS-kernel-2.6.9-85.2.el4_8.10.ia64, GFS-kernel-hugemem-2.6.9-85.2.el4_8.10 +5
- Red Hat Global File System 4WS GFS-kernel-2.6.9-85.2.el4_8.10, GFS-kernel-2.6.9-85.2.el4_8.10.ia64, GFS-kernel-hugemem-2.6.9-85.2.el4_8.10 +5
Show 3 more Red Hat advisories
- RHSA-2010:0330 Released 2010-03-30 · Red Hat rating ModerateGFS security and bug fix update
- Red Hat Global File System 3AS GFS-6.0.2.36-13, GFS-6.0.2.36-13.i386, GFS-6.0.2.36-13.ia32e +11
- Red Hat Global File System 3ES GFS-6.0.2.36-13, GFS-6.0.2.36-13.i386, GFS-6.0.2.36-13.ia32e +11
- Red Hat Global File System 3WS GFS-6.0.2.36-13, GFS-6.0.2.36-13.i386, GFS-6.0.2.36-13.ia32e +11
- RHSA-2010:0291 Released 2010-03-29 · Red Hat rating Moderategfs-kmod security, bug fix and enhancement update
- Red Hat Enterprise Linux Cluster-Storage (v. 5 server) gfs-kmod-0.1.34-12.el5, kmod-gfs-0.1.34-12.el5, kmod-gfs-0.1.34-12.el5.ia64 +3
- RHSA-2010:0178 Released 2010-03-29 · Red Hat rating ImportantRed Hat Enterprise Linux 5.5 kernel security and bug fix update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-194.el5, kernel-2.6.18-194.el5.ia64, kernel-PAE-2.6.18-194.el5 +14
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-194.el5, kernel-PAE-2.6.18-194.el5, kernel-PAE-devel-2.6.18-194.el5 +6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| RHEL Cluster-Storage (v. 5.4.Z server) | Fixed | RHSA-2010:0521 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2010:0178 |
| Red Hat Enterprise Linux Cluster-Storage (v. 5 server) | Fixed | RHSA-2010:0291 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2010:0178 |
| Red Hat Enterprise Linux EUS (v. 5.4 server) | Fixed | RHSA-2010:0380 |
Not affected: 3 products
- Red Hat Enterprise Linux (v. 5 server)
- Red Hat Enterprise Linux Desktop (v. 5 client)
- Red Hat Enterprise Linux EUS (v. 5.4 server)
Timeline
- 2026-10-02 Threatist record created from CVE-2010-0727
- 2026-10-03 Alias added: GHSA-xfgm-rcpf-gf3q
References
Exploit 2
Sources
- CVE-2010-0727 · CVE Program
- CVE-2010-0727 · NVD
- FIRST EPSS
- GHSA-xfgm-rcpf-gf3q · GitHub Advisory Database · CC BY 4.0
- CVE-2010-0727 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences