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TI-2009-03812 Aliases CVE-2009-4020GHSA-qwp9-6w2r-7cq2

Stack-based buffer overflow in the hfs subsystem in the Linux kernel 2.6.32 allows remote…

Priority MEDIUM 42CWE-119Published · Updated

Key facts

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

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

Stack-based buffer overflow in the hfs subsystem in the Linux kernel 2.6.32 allows remote attackers to have an unspecified impact via a crafted Hierarchical File System (HFS) filesystem, related to the hfs_readdir function in fs/hfs/dir.c.

Why it matters now

EPSS 0.04759 91st 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:2.6.32:*:*:*:*:*:*:*2.6.32VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:2.6.32:*:*:*:*:*:*:* Versions 2.6.32 Vulnerable ·Linux

Remediation

Red Hat 2 advisories

  • RHSA-2010:0076 Released 2010-02-02 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux AS version 4 kernel-2.6.9-89.0.20.EL, kernel-2.6.9-89.0.20.EL.ia64, kernel-2.6.9-89.0.20.EL.ppc64iseries +14
    • Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-89.0.20.EL, kernel-devel-2.6.9-89.0.20.EL, kernel-doc-2.6.9-89.0.20.EL +8
    • Red Hat Enterprise Linux ES version 4 kernel-2.6.9-89.0.20.EL, kernel-2.6.9-89.0.20.EL.ia64, kernel-devel-2.6.9-89.0.20.EL +12
    • Red Hat Enterprise Linux WS version 4 kernel-2.6.9-89.0.20.EL, kernel-2.6.9-89.0.20.EL.ia64, kernel-devel-2.6.9-89.0.20.EL +12
  • RHSA-2010:0046 Released 2010-01-19 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-164.11.1.el5, kernel-2.6.18-164.11.1.el5.ia64, kernel-PAE-2.6.18-164.11.1.el5 +14
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-164.11.1.el5, kernel-PAE-2.6.18-164.11.1.el5, kernel-PAE-devel-2.6.18-164.11.1.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-2010:0046
Red Hat Enterprise Linux AS version 4Fixed RHSA-2010:0076
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2010:0046
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2010:0076
Red Hat Enterprise Linux ES version 4Fixed RHSA-2010:0076
Red Hat Enterprise Linux WS version 4Fixed RHSA-2010:0076

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-4020
  2. 2026-10-03 Alias added: GHSA-qwp9-6w2r-7cq2

References

Patch 1

Advisory 6

Other 6

  • 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