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TI-2007-03727 Aliases CVE-2007-3843GHSA-xmg2-6455-627q

The Linux kernel before 2.6.23-rc1 checks the wrong global variable for the CIFS sec…

Priority LOW 25Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
—
Confidentiality · integrity · availability
None · Partial · None
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

The Linux kernel before 2.6.23-rc1 checks the wrong global variable for the CIFS sec mount option, which might allow remote attackers to spoof CIFS network traffic that the client configured for security signatures, as demonstrated by lack of signing despite sec=ntlmv2i in a SetupAndX request.

Why it matters now

EPSS 0.02624 85th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

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 · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:rc6:*:*:*:*:*:*up to 2.6.22VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:rc6:*:*:*:*:*:* Versions up to 2.6.22 Vulnerable ·Linux

Remediation

Red Hat 2 advisories

  • RHSA-2007:0939 Released 2007-11-01 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AS version 4 kernel-2.6.9-55.0.12.EL, kernel-2.6.9-55.0.12.EL.ia64, kernel-2.6.9-55.0.12.EL.ppc64iseries +14
    • Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-55.0.12.EL, kernel-devel-2.6.9-55.0.12.EL, kernel-doc-2.6.9-55.0.12.EL +8
    • Red Hat Enterprise Linux ES version 4 kernel-2.6.9-55.0.12.EL, kernel-2.6.9-55.0.12.EL.ia64, kernel-devel-2.6.9-55.0.12.EL +12
    • Red Hat Enterprise Linux WS version 4 kernel-2.6.9-55.0.12.EL, kernel-2.6.9-55.0.12.EL.ia64, kernel-devel-2.6.9-55.0.12.EL +12
  • RHSA-2007:0705 Released 2007-09-13 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-8.1.10.el5, kernel-2.6.18-8.1.10.el5.ia64, kernel-PAE-2.6.18-8.1.10.el5 +14
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-8.1.10.el5, kernel-PAE-2.6.18-8.1.10.el5, kernel-PAE-devel-2.6.18-8.1.10.el5 +6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2007:0705
Red Hat Enterprise Linux AS version 4Fixed RHSA-2007:0939
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2007:0705
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2007:0939
Red Hat Enterprise Linux ES version 4Fixed RHSA-2007:0939
Red Hat Enterprise Linux WS version 4Fixed RHSA-2007:0939

Timeline

  1. 2026-10-02 Threatist record created from CVE-2007-3843
  2. 2026-10-03 Alias added: GHSA-xmg2-6455-627q

References

Advisory 6

Other 4

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • 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
See all 15278 →

Sources

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