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TI-2006-06664 Aliases CVE-2006-6921GHSA-8v8v-cw2c-7v57

Unspecified versions of the Linux kernel allow local users to cause a denial of service…

Priority LOW 12Published · Updated

Key facts

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

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

Summary

Unspecified versions of the Linux kernel allow local users to cause a denial of service (unrecoverable zombie process) via a program with certain instructions that prevent init from properly reaping a child whose parent has died.

Why it matters now

EPSS 0.00479 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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:2.6.20.1:*:*:*:*:*:*:*2.6.20.1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:2.6.20.1:*:*:*:*:*:*:* Versions 2.6.20.1 Vulnerable ·Linux

Remediation

Red Hat 2 advisories

  • RHSA-2008:0154 Released 2008-03-05 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-53.1.14.el5, kernel-2.6.18-53.1.14.el5.ia64, kernel-PAE-2.6.18-53.1.14.el5 +18
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-53.1.14.el5, kernel-PAE-2.6.18-53.1.14.el5, kernel-PAE-devel-2.6.18-53.1.14.el5 +8
  • 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

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2008:0154
Red Hat Enterprise Linux AS version 4Fixed RHSA-2007:0939
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2008:0154
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-2006-6921
  2. 2026-10-03 Alias added: GHSA-8v8v-cw2c-7v57

References

Exploit 1

Advisory 2

Other 3

  • 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