Summary
It was discovered that Kerberos incorrectly handled certain S4U2Self
requests. An attacker could possibly use this issue to cause a denial of
service. This issue was only addressed in Ubuntu 16.04 ESM and Ubuntu
18.04 LTS. (CVE-2018-20217)
Greg Hudson discovered that Kerberos PAC implementation incorrectly
handled certain parsing operations. A remote attacker could use this
issue to cause a denial of service, or possibly execute arbitrary code.
(CVE-2022-42898)
Fixed packages 5
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 18.04 LTS 18.04:LTS | krb5 | 1.16-2ubuntu0.3 |
| Ubuntu · 20.04 LTS 20.04:LTS | krb5 | 1.17-6ubuntu4.2 |
| Ubuntu · 22.04 LTS 22.04:LTS | krb5 | 1.19.2-2ubuntu0.1 |
| Ubuntu · Pro 14.04 LTS Pro:14.04:LTS | krb5 | 1.12+dfsg-2ubuntu5.4+esm3 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | krb5 | 1.13.2+dfsg-5ubuntu2.2+esm3 |
Vulnerabilities 2
-
High 8.8
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to …
-
Unscored —
A Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 (aka krb5) before 1.17. If an attacker can obta…