CVE-2018-20217

Priority
Description
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.
Notes
Package
Source: krb5 (LP Ubuntu Debian)
Upstream:released (1.17)
Ubuntu 12.04 ESM (Precise Pangolin):needs-triage
Ubuntu 14.04 ESM (Trusty Tahr):needed
Ubuntu 16.04 LTS (Xenial Xerus):needed
Ubuntu 18.04 LTS (Bionic Beaver):needed
Ubuntu 19.04 (Disco Dingo):ignored (reached end-of-life)
Ubuntu 19.10 (Eoan Ermine):needed
Ubuntu 20.04 (Focal Fossa):needed
Patches:
Upstream:https://github.com/krb5/krb5/commit/5e6d1796106df8ba6bc1973ee0917c170d929086
Binaries built from this source package are in universe and so are supported by the community. For more details see https://wiki.ubuntu.com/SecurityTeam/FAQ#Official_Support
More Information

Updated: 2020-01-23 20:39:31 UTC (commit b4629892d998f2ede31f59bb7508dc50a92ac664)