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TI-2018-04136 Aliases CVE-2018-5729GHSA-c28w-559x-wr7v

MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to…

Priority LOW 27CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Partial Red Hat: 7 fixed, 5 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to cause a denial of service (NULL pointer dereference) or bypass a DN container check by supplying tagged data that is internal to the database module.

Why it matters now

EPSS 0.02582 85th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 7 fixed, 5 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 · 8

CPEVersionsRoleVendor
cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*5-1.6 to before 5-1.21.2Vulnerablemoos-ivp
cpe:2.3:o:fedoraproject:fedora:26:*:*:*:*:*:*:*26VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:27:*:*:*:*:*:*:*27VulnerableFedoraproject
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* Versions 5-1.6 to before 5-1.21.2 Vulnerable ·moos-ivp
  • cpe:2.3:o:fedoraproject:fedora:26:*:*:*:*:*:*:* Versions 26 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:27:*:*:*:*:*:*:* Versions 27 Vulnerable ·Fedoraproject
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

Red Hat 1 advisory

  • RHSA-2018:3071 Released 2018-10-30 · Red Hat rating Low
    krb5 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) krb5-1.15.1-34.el7, krb5-libs-1.15.1-34.el7, krb5-pkinit-1.15.1-34.el7 +2
    • Red Hat Enterprise Linux Client Optional (v. 7) krb5-devel-1.15.1-34.el7, krb5-server-1.15.1-34.el7, krb5-server-ldap-1.15.1-34.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) krb5-1.15.1-34.el7, krb5-libs-1.15.1-34.el7, krb5-pkinit-1.15.1-34.el7 +2
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) krb5-devel-1.15.1-34.el7, krb5-server-1.15.1-34.el7, krb5-server-ldap-1.15.1-34.el7
    • Red Hat Enterprise Linux Server (v. 7) krb5-1.15.1-34.el7, krb5-devel-1.15.1-34.el7, krb5-devel-1.15.1-34.el7.ppc +8
    • Red Hat Enterprise Linux Workstation (v. 7) krb5-1.15.1-34.el7, krb5-devel-1.15.1-34.el7, krb5-libs-1.15.1-34.el7 +5
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) krb5-1.15.1-34.el7, krb5-devel-1.15.1-34.el7, krb5-libs-1.15.1-34.el7 +5

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat JBoss Core ServicesAffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Application Platform 6AffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Web Server 2AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:3071
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:3071
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:3071
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:3071
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:3071
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:3071
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:3071
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-5729
  2. 2026-10-03 Alias added: GHSA-c28w-559x-wr7v

References

Patch 2

Advisory 7

Sources

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