DEBIAN-CVE-2018-20217

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Source
https://security-tracker.debian.org/tracker/CVE-2018-20217
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-20217.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2018-20217
Upstream
Published
2018-12-26T21:29:02Z
Modified
2025-09-30T03:54:40Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A 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.

References

Affected packages

Debian:11 / krb5

Package

Name
krb5
Purl
pkg:deb/debian/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16.2-1

Ecosystem specific 

{
    "urgency": "low"
}

Debian:12 / krb5

Package

Name
krb5
Purl
pkg:deb/debian/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16.2-1

Ecosystem specific 

{
    "urgency": "low"
}

Debian:13 / krb5

Package

Name
krb5
Purl
pkg:deb/debian/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16.2-1

Ecosystem specific 

{
    "urgency": "low"
}

Debian:14 / krb5

Package

Name
krb5
Purl
pkg:deb/debian/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16.2-1

Ecosystem specific 

{
    "urgency": "low"
}