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TI-2011-02973 Aliases CVE-2011-3363GHSA-3mjr-5fr9-2r8m

The setup_cifs_sb function in fs/cifs/connect.c in the Linux kernel before 2.6.39 does…

Priority LOW 30CWE-20Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 4 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

The setup_cifs_sb function in fs/cifs/connect.c in the Linux kernel before 2.6.39 does not properly handle DFS referrals, which allows remote CIFS servers to cause a denial of service (system crash) by placing a referral at the root of a share.

Why it matters now

EPSS 0.00827 57th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 4 fixed, 1 without a fix

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 · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 2.6.39VulnerableLinux
cpe:2.3:o:redhat:enterprise_linux:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.39 Vulnerable ·Linux
  • cpe:2.3:o:redhat:enterprise_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat

Remediation

Red Hat 3 advisories

  • RHSA-2012:0010 Released 2012-01-10 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-2.6.33.9-rt31.79.el6rt, kernel-rt-debug-2.6.33.9-rt31.79.el6rt, kernel-rt-debug-devel-2.6.33.9-rt31.79.el6rt +7
  • RHSA-2011:1479 Released 2011-11-29 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-274.12.1.el5, kernel-2.6.18-274.12.1.el5.ia64, kernel-PAE-2.6.18-274.12.1.el5 +18
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-274.12.1.el5, kernel-PAE-2.6.18-274.12.1.el5, kernel-PAE-devel-2.6.18-274.12.1.el5 +8
  • RHSA-2011:1465 Released 2011-11-22 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-131.21.1.el6, kernel-bootwrapper-2.6.32-131.21.1.el6, kernel-debug-2.6.32-131.21.1.el6 +8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 4AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2011:1479
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2011:1479
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:1465
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2012:0010

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-3363
  2. 2026-10-03 Alias added: GHSA-3mjr-5fr9-2r8m

References

Patch 3

Other 2

Sources

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