The cifs_find_smb_ses function in fs/cifs/connect.c in the Linux kernel before 2.6.36…
Priority LOW 17CWE-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 · None
- Fix status
- Partial Red Hat: 3 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
Summary
The cifs_find_smb_ses function in fs/cifs/connect.c in the Linux kernel before 2.6.36 does not properly determine the associations between users and sessions, which allows local users to bypass CIFS share authentication by leveraging a mount of a share by a different user.
Why it matters now
EPSS 0.00494 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 3 fixed, 1 without a fix
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 2 advisories
- RHSA-2011:1386 Released 2011-10-20 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-274.7.1.el5, kernel-2.6.18-274.7.1.el5.ia64, kernel-PAE-2.6.18-274.7.1.el5 +14
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-274.7.1.el5, kernel-PAE-2.6.18-274.7.1.el5, kernel-PAE-devel-2.6.18-274.7.1.el5 +6
- RHSA-2011:1253 Released 2011-09-12 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-2.6.33.9-rt31.75.el6rt, kernel-rt-debug-2.6.33.9-rt31.75.el6rt, kernel-rt-debug-devel-2.6.33.9-rt31.75.el6rt +7
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise MRG 1 | Affected | No fix yet |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2011:1386 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2011:1386 |
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2011:1253 |
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1585
- 2026-10-03 Alias added: GHSA-x654-xc6m-hm65
References
Advisory 3
Sources
- CVE-2011-1585 · CVE Program
- CVE-2011-1585 · NVD
- FIRST EPSS
- GHSA-x654-xc6m-hm65 · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1585 · Red Hat security data · CC BY 4.0
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