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TI-2011-01349 Aliases CVE-2011-1530GHSA-3vf4-p6xq-xxr9

The process_tgs_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT…

Priority LOW 35CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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-399 and the CVSS impact.

Summary

The process_tgs_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.2 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS request that triggers an error other than the KRB5_KDB_NOENTRY error.

Why it matters now

EPSS 0.02383 84th 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 · 3

CPEVersionsRoleVendor
cpe:2.3:a:mit:mit_kerberos:5.1.9:*:*:*:*:*:*:*5.1.9Vulnerablemoos-ivp
cpe:2.3:a:mit:mit_kerberos:5.1.9.1:*:*:*:*:*:*:*5.1.9.1Vulnerablemoos-ivp
cpe:2.3:a:mit:mit_kerberos:5.1.9.2:*:*:*:*:*:*:*5.1.9.2Vulnerablemoos-ivp
  • cpe:2.3:a:mit:mit_kerberos:5.1.9:*:*:*:*:*:*:* Versions 5.1.9 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:mit_kerberos:5.1.9.1:*:*:*:*:*:*:* Versions 5.1.9.1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:mit_kerberos:5.1.9.2:*:*:*:*:*:*:* Versions 5.1.9.2 Vulnerable ·moos-ivp

Remediation

Red Hat 1 advisory

  • RHSA-2011:1790 Released 2011-12-06 · Red Hat rating Moderate
    krb5 security update
    • Red Hat Enterprise Linux Desktop (v. 6) krb5-1.9-22.el6_2.1, krb5-libs-1.9-22.el6_2.1, krb5-pkinit-openssl-1.9-22.el6_2.1 +1
    • Red Hat Enterprise Linux Desktop Optional (v. 6) krb5-1.9-22.el6_2.1, krb5-devel-1.9-22.el6_2.1, krb5-server-1.9-22.el6_2.1 +1
    • Red Hat Enterprise Linux HPC Node (v. 6) krb5-1.9-22.el6_2.1, krb5-libs-1.9-22.el6_2.1, krb5-pkinit-openssl-1.9-22.el6_2.1 +1
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) krb5-1.9-22.el6_2.1, krb5-devel-1.9-22.el6_2.1, krb5-server-1.9-22.el6_2.1 +1
    • Red Hat Enterprise Linux Server (v. 6) krb5-1.9-22.el6_2.1, krb5-devel-1.9-22.el6_2.1, krb5-devel-1.9-22.el6_2.1.ppc +7
    • Red Hat Enterprise Linux Workstation (v. 6) krb5-1.9-22.el6_2.1, krb5-devel-1.9-22.el6_2.1, krb5-libs-1.9-22.el6_2.1 +4

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2011:1790
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2011:1790
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2011:1790
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2011:1790
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:1790
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2011:1790
Not affected: 2 products
  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-1530
  2. 2026-10-03 Alias added: GHSA-3vf4-p6xq-xxr9

References

Patch 1

Advisory 2

Sources

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