CVE-2018-20217

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Source
https://nvd.nist.gov/vuln/detail/CVE-2018-20217
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20217.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-20217
Related
Published
2018-12-26T21:29:02Z
Modified
2025-01-15T01:38:01.402394Z
Downstream
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

Alpine:v3.10 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.11 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.12 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.13 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.14 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.15 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.16 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.17 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.18 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.19 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.20 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.21 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

Alpine:v3.6 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.14.3-r3

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2

Alpine:v3.7 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.3-r0

Alpine:v3.8 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0

Alpine:v3.9 / krb5

Package

Name
krb5
Purl
pkg:apk/alpine/krb5?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.15.4-r0

Affected versions

1.*

1.11-r0
1.11-r1
1.11-r2
1.11.2-r0
1.11.2-r1
1.11.2-r2
1.11.3-r0
1.11.4-r0
1.12.1-r0
1.12.2-r0
1.13-r0
1.13-r1
1.13.1-r0
1.13.1-r1
1.13.2-r0
1.13.2-r1
1.13.2-r2
1.14-r0
1.14-r1
1.14-r2
1.14.3-r0
1.14.3-r1
1.14.3-r2
1.15.1-r0
1.15.2-r0
1.15.2-r1
1.15.2-r2
1.15.3-r0
1.15.3-r1

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"
}

Git / github.com/krb5/krb5

Affected ranges

Type
GIT
Repo
https://github.com/krb5/krb5
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5e6d1796106df8ba6bc1973ee0917c170d929086
Fixed
5e6d1796106df8ba6bc1973ee0917c170d929086