NFSv4 in the Linux kernel 2.6.18, and possibly other versions, does not properly clean up…
Priority LOW 22CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- 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
NFSv4 in the Linux kernel 2.6.18, and possibly other versions, does not properly clean up an inode when an O_EXCL create fails, which causes files to be created with insecure settings such as setuid bits, and possibly allows local users to gain privileges, related to the execution of the do_open_permission function even when a create fails.
Why it matters now
EPSS 0.00468 40th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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-2009:1548 Released 2009-11-03 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-164.6.1.el5, kernel-2.6.18-164.6.1.el5.ia64, kernel-PAE-2.6.18-164.6.1.el5 +18
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-164.6.1.el5, kernel-PAE-2.6.18-164.6.1.el5, kernel-PAE-devel-2.6.18-164.6.1.el5 +8
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2009:1548 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2009:1548 |
Timeline
- 2026-10-02 Threatist record created from CVE-2009-3286
- 2026-10-03 Alias added: GHSA-m7c3-gvjv-4h47
References
Other 6
- [security-announce] 20100303 VMSA-2010-0004 ESX Service Console and vMA third party updates
- oval:org.mitre.oval:def:9757
- oval:org.mitre.oval:def:7527
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=81ac95c5
- [oss-security] 20090921 CVE request: kernel: issue with O_EXCL creates on NFSv4
- https://bugzilla.redhat.com/show_bug.cgi?id=524520
More Linux Kernel vulnerabilities
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- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2009-3286 · CVE Program
- CVE-2009-3286 · NVD
- FIRST EPSS
- GHSA-m7c3-gvjv-4h47 · GitHub Advisory Database · CC BY 4.0
- CVE-2009-3286 · Red Hat security data · CC BY 4.0
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