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TI-2004-00391 Aliases CVE-2004-0427GHSA-6336-xxrx-mvmh

The do_fork function in Linux 2.4.x before 2.4.26, and 2.6.x before 2.6.6, does not…

Priority LOW 12CWE-401Published · Updated

Key facts

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

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-401.

Summary

The do_fork function in Linux 2.4.x before 2.4.26, and 2.6.x before 2.6.6, does not properly decrement the mm_count counter when an error occurs after the mm_struct for a child process has been activated, which triggers a memory leak that allows local users to cause a denial of service (memory exhaustion) via the clone (CLONE_VM) system call.

Why it matters now

EPSS 0.00468 40th 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:*:*:*:*:*:*:*:*2.4.0 to before 2.4.26; 2.6.0 to before 2.6.6VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.4.0 to before 2.4.26; 2.6.0 to before 2.6.6 Vulnerable ·Linux

Remediation

Red Hat 2 advisories

  • RHSA-2004:327 Released 2004-08-18 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1
    • Red Hat Linux Advanced Workstation 2.1
  • RHSA-2004:255 Released 2004-06-18 · Red Hat rating Important
    kernel security update
    • Red Hat Desktop version 3 kernel-2.4.21-15.0.2.EL, kernel-2.4.21-15.0.2.EL.athlon, kernel-2.4.21-15.0.2.EL.ia32e +14
    • Red Hat Enterprise Linux AS version 3 kernel-2.4.21-15.0.2.EL, kernel-2.4.21-15.0.2.EL.athlon, kernel-2.4.21-15.0.2.EL.ia32e +22
    • Red Hat Enterprise Linux ES version 3 kernel-2.4.21-15.0.2.EL, kernel-2.4.21-15.0.2.EL.athlon, kernel-2.4.21-15.0.2.EL.ia32e +18
    • Red Hat Enterprise Linux WS version 3 kernel-2.4.21-15.0.2.EL, kernel-2.4.21-15.0.2.EL.athlon, kernel-2.4.21-15.0.2.EL.ia32e +18

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Desktop version 3Fixed RHSA-2004:255
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2004:327
Red Hat Enterprise Linux AS version 3Fixed RHSA-2004:255
Red Hat Enterprise Linux ES version 3Fixed RHSA-2004:255
Red Hat Enterprise Linux WS version 3Fixed RHSA-2004:255
Red Hat Linux Advanced Workstation 2.1Fixed RHSA-2004:327

Timeline

  1. 2026-10-02 Threatist record created from CVE-2004-0427
  2. 2026-10-03 Alias added: GHSA-6336-xxrx-mvmh

References

Advisory 15

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