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TI-2006-05771 Aliases CVE-2006-5989GHSA-f5v5-ggh9-mj78

Off-by-one error in the der_get_oid function in mod_auth_kerb 5.0 allows remote attackers…

Priority LOW 30Published · Updated

Key facts

Attack vector
Network
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

Off-by-one error in the der_get_oid function in mod_auth_kerb 5.0 allows remote attackers to cause a denial of service (crash) via a crafted Kerberos message that triggers a heap-based buffer overflow in the component array.

Why it matters now

EPSS 0.03964 90th 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:a:mod_auth_kerb:mod_auth_kerb:5.0:*:*:*:*:*:*:*5.0VulnerableMod Auth Kerb
  • cpe:2.3:a:mod_auth_kerb:mod_auth_kerb:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Mod Auth Kerb

Remediation

Red Hat 1 advisory

  • RHSA-2006:0746 Released 2006-12-06 · Red Hat rating Low
    mod_auth_kerb security update
    • Red Hat Enterprise Linux AS version 4 mod_auth_kerb-5.0-1.3, mod_auth_kerb-5.0-1.3.i386, mod_auth_kerb-5.0-1.3.ia64 +1
    • Red Hat Enterprise Linux Desktop version 4 mod_auth_kerb-5.0-1.3, mod_auth_kerb-5.0-1.3.i386
    • Red Hat Enterprise Linux ES version 4 mod_auth_kerb-5.0-1.3, mod_auth_kerb-5.0-1.3.i386, mod_auth_kerb-5.0-1.3.ia64
    • Red Hat Enterprise Linux WS version 4 mod_auth_kerb-5.0-1.3, mod_auth_kerb-5.0-1.3.i386, mod_auth_kerb-5.0-1.3.ia64

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux AS version 4Fixed RHSA-2006:0746
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2006:0746
Red Hat Enterprise Linux ES version 4Fixed RHSA-2006:0746
Red Hat Enterprise Linux WS version 4Fixed RHSA-2006:0746

Timeline

  1. 2026-10-02 Threatist record created from CVE-2006-5989
  2. 2026-10-03 Alias added: GHSA-f5v5-ggh9-mj78
  3. 2026-10-18 EPSS moved to the 90th–95th percentile

References

Advisory 4

Other 4

Sources

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