[Secure-testing-team] Bug#889685: krb5: CVE-2018-5710

[Salvatore Bonaccorso]

Source: krb5
Version: 1.16-2
Severity: important
Tags: security upstream

Hi,

the following vulnerability was published for krb5, filling a bug to
track the issue once more details are available.

CVE-2018-5710[0]:
| An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The
| pre-defined function "strlen" is getting a "NULL" string as a parameter
| value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key
| Distribution Center (KDC), which allows remote authenticated users to
| cause a denial of service (NULL pointer dereference) via a modified
| kadmin client.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2018-5710
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5710

Please adjust the affected versions in the BTS as needed, once known.

Regards,
Salvatore