This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2018-20217 →

DEBIAN-CVE-2018-20217

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 old...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 krb5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-1"}]}]

Debian:13 krb5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-1"}]}]

Debian:14 krb5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-1"}]}]

References

advisory security-tracker.debian.org