CVE-2018-20217

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Summary

CVECVE-2018-20217
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-12-26 21:29:00 UTC
Updated2023-11-07 02:56:00 UTC
DescriptionA Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 (aka krb5) before 1.17. If an attacker can obtain a krbtgt ticket using an older encryption type (single-DES, triple-DES, or RC4), the attacker can crash the KDC by making an S4U2Self request.

Risk And Classification

Problem Types: CWE-617

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Application Mit Kerberos All All All All
Application Mit Kerberos All All All All

References

ReferenceSourceLinkTags
[SECURITY] [DLA 2771-1] krb5 security update MLIST lists.debian.org
#8763: Ignore password attributes for S4U2Self requests CONFIRM krbdev.mit.edu Patch, Third Party Advisory
[SECURITY] Fedora 29 Update: krb5-1.16.1-22.fc29 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Third Party Advisory
CVE-2018-20217 MIT Kerberos 5 Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
[SECURITY] Fedora 29 Update: krb5-1.16.1-22.fc29 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] [DLA 1643-1] krb5 security update MLIST lists.debian.org Mailing List, Third Party Advisory
Ignore password attributes for S4U2Self requests · krb5/krb5@5e6d179 · GitHub CONFIRM github.com Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 178852 Debian Security Update for krb5 (DLA 2771-1)
  • 199133 Ubuntu Security Notification for Kerberos Vulnerabilities (USN-5828-1)
  • 296091 Oracle Solaris 11.4 Support Repository Update (SRU) 6.1.4 Missing (CPUJAN2019)
  • 500274 Alpine Linux Security Update for krb5
  • 504039 Alpine Linux Security Update for krb5
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