The __do_follow_link function in fs/namei.c in the Linux kernel before 2.6.33 does not…
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
The __do_follow_link function in fs/namei.c in the Linux kernel before 2.6.33 does not properly handle the last pathname component during use of certain filesystems, which allows local users to cause a denial of service (incorrect free operations and system crash) via an open system call.
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
Remediation
Red Hat 1 advisory
- RHSA-2014:0771 Released 2014-06-19 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-431.20.3.el6, kernel-abi-whitelists-2.6.32-431.20.3.el6, kernel-debug-2.6.32-431.20.3.el6 +6
- Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-431.20.3.el6, python-perf-2.6.32-431.20.3.el6
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-431.20.3.el6, kernel-abi-whitelists-2.6.32-431.20.3.el6, kernel-debug-2.6.32-431.20.3.el6 +6
- Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-431.20.3.el6, python-perf-2.6.32-431.20.3.el6
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-431.20.3.el6, kernel-abi-whitelists-2.6.32-431.20.3.el6, kernel-bootwrapper-2.6.32-431.20.3.el6 +9
- Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-431.20.3.el6, python-perf-2.6.32-431.20.3.el6
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-431.20.3.el6, kernel-abi-whitelists-2.6.32-431.20.3.el6, kernel-debug-2.6.32-431.20.3.el6 +6
- Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-431.20.3.el6, python-perf-2.6.32-431.20.3.el6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2014:0771 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2014:0771 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2014:0771 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2014:0771 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2014:0771 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2014:0771 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2014:0771 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2014:0771 |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 7
- Red Hat Enterprise MRG 2
Timeline
- 2026-10-02 Threatist record created from CVE-2014-0203
- 2026-10-03 Alias added: GHSA-48m7-cf7p-jqm7
References
Advisory 2
Sources
- CVE-2014-0203 · CVE Program
- CVE-2014-0203 · NVD
- FIRST EPSS
- GHSA-48m7-cf7p-jqm7 · GitHub Advisory Database · CC BY 4.0
- CVE-2014-0203 · 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