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TI-2009-02574 Aliases CVE-2009-2692GHSA-j86m-g62r-5g7r

The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize…

Priority MEDIUM 50CWE-908Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

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

Summary

The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.

Why it matters now

EPSS 0.14633 96th percentileScored 2026-11-07
Public exploit Yes 4 exploit referencesTagged by NVD and the CNA
Fix Fixed Red Hat: 6 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 · 12

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*2.4.4 to before 2.4.37.5; 2.6.0 to before 2.6.30.5VulnerableLinux
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*4.0VulnerableDebian
cpe:2.3:o:suse:linux_enterprise_real_time:10:*:*:*:*:*:*:*10VulnerableSUSE
cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:4.8:*:*:*:*:*:*:*4.8VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:5.3:*:*:*:*:*:*:*5.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:5.3:*:*:*:*:*:*:*5.3VulnerableRed Hat
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.4.4 to before 2.4.37.5; 2.6.0 to before 2.6.30.5 Vulnerable ·Linux
  • cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Debian
  • cpe:2.3:o:suse:linux_enterprise_real_time:10:*:*:*:*:*:*:* Versions 10 Vulnerable ·SUSE
  • cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:4.8:*:*:*:*:*:*:* Versions 4.8 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:5.3:*:*:*:*:*:*:* Versions 5.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:5.3:*:*:*:*:*:*:* Versions 5.3 Vulnerable ·Red Hat
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_workstation:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat

Remediation

Red Hat 6 advisories

  • RHSA-2009:1469 Released 2009-09-30 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AS EUS (v. 4.7) kernel-2.6.9-78.0.27.EL, kernel-2.6.9-78.0.27.EL.ia64, kernel-2.6.9-78.0.27.EL.ppc64iseries +14
    • Red Hat Enterprise Linux ES EUS (v. 4.7) kernel-2.6.9-78.0.27.EL, kernel-2.6.9-78.0.27.EL.ia64, kernel-devel-2.6.9-78.0.27.EL +12
  • RHSA-2009:1457 Released 2009-09-22 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux EUS (v. 5.2 server) kernel-2.6.18-92.1.28.el5, kernel-2.6.18-92.1.28.el5.ia64, kernel-PAE-2.6.18-92.1.28.el5 +18
  • RHSA-2009:1239 Released 2009-09-01 · Red Hat rating Important
    kernel-rt security and bug fix update
    • MRG Realtime for RHEL 5 Server kernel-rt-2.6.24.7-132.el5rt, kernel-rt-debug-2.6.24.7-132.el5rt, kernel-rt-debug-devel-2.6.24.7-132.el5rt +6
Show 3 more Red Hat advisories
  • RHSA-2009:1233 Released 2009-08-27 · Red Hat rating Important
    kernel security update
    • Red Hat Desktop version 3 kernel-2.4.21-60.EL, kernel-2.4.21-60.EL.athlon, kernel-2.4.21-60.EL.ia32e +14
    • Red Hat Enterprise Linux AS version 3 kernel-2.4.21-60.EL, kernel-2.4.21-60.EL.athlon, kernel-2.4.21-60.EL.ia32e +22
    • Red Hat Enterprise Linux ES version 3 kernel-2.4.21-60.EL, kernel-2.4.21-60.EL.athlon, kernel-2.4.21-60.EL.ia32e +18
    • Red Hat Enterprise Linux WS version 3 kernel-2.4.21-60.EL, kernel-2.4.21-60.EL.athlon, kernel-2.4.21-60.EL.ia32e +18
  • RHSA-2009:1223 Released 2009-08-24 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AS version 4 kernel-2.6.9-89.0.9.EL, kernel-2.6.9-89.0.9.EL.ia64, kernel-2.6.9-89.0.9.EL.ppc64iseries +14
    • Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-89.0.9.EL, kernel-devel-2.6.9-89.0.9.EL, kernel-doc-2.6.9-89.0.9.EL +8
    • Red Hat Enterprise Linux ES version 4 kernel-2.6.9-89.0.9.EL, kernel-2.6.9-89.0.9.EL.ia64, kernel-devel-2.6.9-89.0.9.EL +12
    • Red Hat Enterprise Linux WS version 4 kernel-2.6.9-89.0.9.EL, kernel-2.6.9-89.0.9.EL.ia64, kernel-devel-2.6.9-89.0.9.EL +12
  • RHSA-2009:1222 Released 2009-08-24 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-128.7.1.el5, kernel-2.6.18-128.7.1.el5.ia64, kernel-PAE-2.6.18-128.7.1.el5 +18
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-128.7.1.el5, kernel-PAE-2.6.18-128.7.1.el5, kernel-PAE-devel-2.6.18-128.7.1.el5 +8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
MRG Realtime for RHEL 5 ServerFixed RHSA-2009:1239
Red Hat Desktop version 3Fixed RHSA-2009:1233
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2009:1222
Red Hat Enterprise Linux AS EUS (v. 4.7)Fixed RHSA-2009:1469
Red Hat Enterprise Linux AS version 3Fixed RHSA-2009:1233
Red Hat Enterprise Linux AS version 4Fixed RHSA-2009:1223
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2009:1222
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2009:1223
Red Hat Enterprise Linux ES EUS (v. 4.7)Fixed RHSA-2009:1469
Red Hat Enterprise Linux ES version 3Fixed RHSA-2009:1233
Red Hat Enterprise Linux ES version 4Fixed RHSA-2009:1223
Red Hat Enterprise Linux EUS (v. 5.2 server)Fixed RHSA-2009:1457
Red Hat Enterprise Linux WS version 3Fixed RHSA-2009:1233
Red Hat Enterprise Linux WS version 4Fixed RHSA-2009:1223

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-2692
  2. 2026-10-03 Alias added: GHSA-j86m-g62r-5g7r

References

Exploit 4

Patch 3

Advisory 12

Other 9

Sources

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