Source: krb5
Version: 1.18.3-5
Severity: grave
Tags: security upstream
Justification: user security hole
X-Debbugs-Cc: car...@debian.org, Debian Security Team <t...@security.debian.org>

Hi,

The following vulnerability was published for krb5.

CVE-2021-36222[0]:
| sending a request containing a PA-ENCRYPTED-CHALLENGE padata element
| without using FAST could result in null dereference in the KDC which
| leads to DoS

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-2021-36222
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36222
[1] https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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