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TI-2009-01794 Aliases CVE-2009-1883GHSA-h3m4-w364-g2gg

The z90crypt_unlocked_ioctl function in the z90crypt driver in the Linux kernel 2.6.9…

Priority LOW 20CWE-264Published · Updated

Key facts

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

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.

Summary

The z90crypt_unlocked_ioctl function in the z90crypt driver in the Linux kernel 2.6.9 does not perform a capability check for the Z90QUIESCE operation, which allows local users to leverage euid 0 privileges to force a driver outage.

Why it matters now

EPSS 0.00342 27th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

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:2.6.9:*:*:*:*:*:*:*2.6.9VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:2.6.9:*:*:*:*:*:*:* Versions 2.6.9 Vulnerable ·Linux

Remediation

Red Hat 1 advisory

  • RHSA-2009:1438 Released 2009-09-15 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux AS version 4 kernel-2.6.9-89.0.11.EL, kernel-2.6.9-89.0.11.EL.ia64, kernel-2.6.9-89.0.11.EL.ppc64iseries +14
    • Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-89.0.11.EL, kernel-devel-2.6.9-89.0.11.EL, kernel-doc-2.6.9-89.0.11.EL +8
    • Red Hat Enterprise Linux ES version 4 kernel-2.6.9-89.0.11.EL, kernel-2.6.9-89.0.11.EL.ia64, kernel-devel-2.6.9-89.0.11.EL +12
    • Red Hat Enterprise Linux WS version 4 kernel-2.6.9-89.0.11.EL, kernel-2.6.9-89.0.11.EL.ia64, kernel-devel-2.6.9-89.0.11.EL +12

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux AS version 4Fixed RHSA-2009:1438
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2009:1438
Red Hat Enterprise Linux ES version 4Fixed RHSA-2009:1438
Red Hat Enterprise Linux WS version 4Fixed RHSA-2009:1438

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-1883
  2. 2026-10-03 Alias added: GHSA-h3m4-w364-g2gg

References

Advisory 4

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