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TI-2017-08405 Aliases CVE-2017-11368GHSA-8f95-9vr9-hxf2

In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC…

Priority LOW 33CWE-617Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 7 fixed, 1 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-617.

Summary

In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.

Why it matters now

EPSS 0.02397 84th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 7 fixed, 1 without a fix

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 · 51

CPEVersionsRoleVendor
cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*25VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:26:*:*:*:*:*:*:*26VulnerableFedoraproject
cpe:2.3:a:mit:kerberos:5-1.13.7:*:*:*:*:*:*:*5-1.13.7Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:*1.7Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.7.1:*:*:*:*:*:*:*1.7.1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.8:*:*:*:*:*:*:*1.8Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.8.1:*:*:*:*:*:*:*1.8.1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.8.2:*:*:*:*:*:*:*1.8.2Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.8.3:*:*:*:*:*:*:*1.8.3Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.8.4:*:*:*:*:*:*:*1.8.4Vulnerablemoos-ivp
  • cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:* Versions 25 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:26:*:*:*:*:*:*:* Versions 26 Vulnerable ·Fedoraproject
  • cpe:2.3:a:mit:kerberos:5-1.13.7:*:*:*:*:*:*:* Versions 5-1.13.7 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:* Versions 1.7 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.7.1:*:*:*:*:*:*:* Versions 1.7.1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.8:*:*:*:*:*:*:* Versions 1.8 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.8.1:*:*:*:*:*:*:* Versions 1.8.1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.8.2:*:*:*:*:*:*:* Versions 1.8.2 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.8.3:*:*:*:*:*:*:* Versions 1.8.3 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.8.4:*:*:*:*:*:*:* Versions 1.8.4 Vulnerable ·moos-ivp
Show 41 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:mit:kerberos_5:1.8.5:*:*:*:*:*:*:*1.8.5Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.8.6:*:*:*:*:*:*:*1.8.6Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:*1.9Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.9.1:*:*:*:*:*:*:*1.9.1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.9.2:*:*:*:*:*:*:*1.9.2Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.9.3:*:*:*:*:*:*:*1.9.3Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.9.4:*:*:*:*:*:*:*1.9.4Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:*1.10Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:*1.10.1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:*1.10.2Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:*1.10.3Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:*1.10.4Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:*1.11Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:*1.11.1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:*1.11.2Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:*1.11.3Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:*1.11.4Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.11.5:*:*:*:*:*:*:*1.11.5Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:*1.12Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:*1.12.1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.12.2:*:*:*:*:*:*:*1.12.2Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.12.3:*:*:*:*:*:*:*1.12.3Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.13:*:*:*:*:*:*:*1.13Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.13.1:*:*:*:*:*:*:*1.13.1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.13.2:*:*:*:*:*:*:*1.13.2Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.13.3:*:*:*:*:*:*:*1.13.3Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.13.5:*:*:*:*:*:*:*1.13.5Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.13.6:*:*:*:*:*:*:*1.13.6Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.14:*:*:*:*:*:*:*1.14Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.14:alpha1:*:*:*:*:*:*1.14 alpha1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.14:beta1:*:*:*:*:*:*1.14 beta1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.14:beta2:*:*:*:*:*:*1.14 beta2Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.14.1:*:*:*:*:*:*:*1.14.1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.14.2:*:*:*:*:*:*:*1.14.2Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.14.3:*:*:*:*:*:*:*1.14.3Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.14.4:*:*:*:*:*:*:*1.14.4Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.14.5:*:*:*:*:*:*:*1.14.5Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.15:*:*:*:*:*:*:*1.15Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.15.1:*:*:*:*:*:*:*1.15.1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.15.1:beta1:*:*:*:*:*:*1.15.1 beta1Vulnerablemoos-ivp
cpe:2.3:a:mit:kerberos_5:1.15.1:beta2:*:*:*:*:*:*1.15.1 beta2Vulnerablemoos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.8.5:*:*:*:*:*:*:* Versions 1.8.5 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.8.6:*:*:*:*:*:*:* Versions 1.8.6 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:* Versions 1.9 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.9.1:*:*:*:*:*:*:* Versions 1.9.1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.9.2:*:*:*:*:*:*:* Versions 1.9.2 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.9.3:*:*:*:*:*:*:* Versions 1.9.3 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.9.4:*:*:*:*:*:*:* Versions 1.9.4 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:* Versions 1.10 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:* Versions 1.10.1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:* Versions 1.10.2 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:* Versions 1.10.3 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:* Versions 1.10.4 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.11:*:*:*:*:*:*:* Versions 1.11 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.11.1:*:*:*:*:*:*:* Versions 1.11.1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.11.2:*:*:*:*:*:*:* Versions 1.11.2 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.11.3:*:*:*:*:*:*:* Versions 1.11.3 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.11.4:*:*:*:*:*:*:* Versions 1.11.4 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.11.5:*:*:*:*:*:*:* Versions 1.11.5 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:* Versions 1.12 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:* Versions 1.12.1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.12.2:*:*:*:*:*:*:* Versions 1.12.2 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.12.3:*:*:*:*:*:*:* Versions 1.12.3 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.13:*:*:*:*:*:*:* Versions 1.13 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.13.1:*:*:*:*:*:*:* Versions 1.13.1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.13.2:*:*:*:*:*:*:* Versions 1.13.2 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.13.3:*:*:*:*:*:*:* Versions 1.13.3 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.13.5:*:*:*:*:*:*:* Versions 1.13.5 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.13.6:*:*:*:*:*:*:* Versions 1.13.6 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.14:*:*:*:*:*:*:* Versions 1.14 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.14:alpha1:*:*:*:*:*:* Versions 1.14 alpha1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.14:beta1:*:*:*:*:*:* Versions 1.14 beta1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.14:beta2:*:*:*:*:*:* Versions 1.14 beta2 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.14.1:*:*:*:*:*:*:* Versions 1.14.1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.14.2:*:*:*:*:*:*:* Versions 1.14.2 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.14.3:*:*:*:*:*:*:* Versions 1.14.3 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.14.4:*:*:*:*:*:*:* Versions 1.14.4 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.14.5:*:*:*:*:*:*:* Versions 1.14.5 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.15:*:*:*:*:*:*:* Versions 1.15 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.15.1:*:*:*:*:*:*:* Versions 1.15.1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.15.1:beta1:*:*:*:*:*:* Versions 1.15.1 beta1 Vulnerable ·moos-ivp
  • cpe:2.3:a:mit:kerberos_5:1.15.1:beta2:*:*:*:*:*:* Versions 1.15.1 beta2 Vulnerable ·moos-ivp

Remediation

Red Hat 1 advisory

  • RHSA-2018:0666 Released 2018-04-10 · Red Hat rating Moderate
    krb5 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) krb5-1.15.1-18.el7, krb5-libs-1.15.1-18.el7, krb5-pkinit-1.15.1-18.el7 +2
    • Red Hat Enterprise Linux Client Optional (v. 7) krb5-devel-1.15.1-18.el7, krb5-server-1.15.1-18.el7, krb5-server-ldap-1.15.1-18.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) krb5-1.15.1-18.el7, krb5-libs-1.15.1-18.el7, krb5-pkinit-1.15.1-18.el7 +2
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) krb5-devel-1.15.1-18.el7, krb5-server-1.15.1-18.el7, krb5-server-ldap-1.15.1-18.el7
    • Red Hat Enterprise Linux Server (v. 7) krb5-1.15.1-18.el7, krb5-devel-1.15.1-18.el7, krb5-devel-1.15.1-18.el7.ppc +8
    • Red Hat Enterprise Linux Workstation (v. 7) krb5-1.15.1-18.el7, krb5-devel-1.15.1-18.el7, krb5-libs-1.15.1-18.el7 +5
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) krb5-1.15.1-18.el7, krb5-devel-1.15.1-18.el7, krb5-libs-1.15.1-18.el7 +5

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:0666
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:0666
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:0666
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:0666
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:0666
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:0666
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:0666
Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat JBoss Enterprise Application Platform 6
  • Red Hat JBoss Enterprise Web Server 2
  • Red Hat JBoss Enterprise Web Server 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-11368
  2. 2026-10-03 Alias added: GHSA-8f95-9vr9-hxf2

References

Patch 1

Advisory 3

Sources

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