CVE-2019-12098

In the client side of Heimdal before 7.6.0, failure to verify anonymous PKINIT PA-PKINIT-KX key exchange permits a man-in-the-middle attack. This issue is in krb5_init_creds_step in lib/krb5/init_creds_pw.c.

Published: May 16, 2019
Updated: Apr 13, 2023
CVE: CVE-2019-12098
Severity: High
Exploit:

CVSS v3:

Severity: High
Score: 7.4
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v2:

Severity: Medium
Score: 5.8
AV:N/AC:M/Au:N/C:P/I:P/A:N

No CWE or OWASP classifications available.

Affected Software
References

Software	From	Fixed in
heimdal_project / heimdal	-	7.6.0
fedoraproject / fedora	30	30.x
fedoraproject / fedora	31	31.x
opensuse / leap	42.3	42.3.x
opensuse / leap	15.0	15.0.x
opensuse / leap	15.1	15.1.x
opensuse / backports_sle	15.0-sp1	15.0-sp1.x
opensuse / backports_sle	15.0	15.0.x
debian / debian_linux	9.0	9.0.x

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html
http://www.h5l.org/pipermail/heimdal-announce/2019-May/000009.html
https://github.com/heimdal/heimdal/commit/2f7f3d9960aa6ea21358bdf3687cee5149aa35cf
https://github.com/heimdal/heimdal/compare/3e58559...bbafe72
https://github.com/heimdal/heimdal/releases/tag/heimdal-7.6.0
https://lists.fedoraproject.org/archives/list/[email protected]/message/GIXEDVVMPD6ZAJSMI2EZ7FNEIVNWE5PD/
https://lists.fedoraproject.org/archives/list/[email protected]/message/SLXXIF4LOQEAEDAF4UGP2AO6WDNTDFUB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GIXEDVVMPD6ZAJSMI2EZ7FNEIVNWE5PD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SLXXIF4LOQEAEDAF4UGP2AO6WDNTDFUB/
https://seclists.org/bugtraq/2019/Jun/1
https://www.debian.org/security/2019/dsa-4455

Vulnerability Database

289,599

CVE-2019-12098