CVE-2019-12098

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Summary

CVECVE-2019-12098
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-05-15 23:29:00 UTC
Updated2026-04-15 21:17:00 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.4 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS: 0.046430000 probability, percentile 0.893050000 (date 2026-04-15)

Problem Types: NVD-CWE-noinfo | CWE-295 | n/a | CWE-295 CWE-295 Improper Certificate Validation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1ADPDECLARED7.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
2.0[email protected]Primary5.8AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None

AV:N/AC:M/Au:N/C:P/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 30 All All All
Operating System Fedoraproject Fedora 31 All All All
Application Heimdal Project Heimdal All All All All
Application Opensuse Backports Sle 15.0 - All All
Application Opensuse Backports Sle 15.0 sp1 All All
Operating System Opensuse Leap 15.0 All All All
Operating System Opensuse Leap 15.1 All All All
Operating System Opensuse Leap 42.3 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Release Heimdal 7.6.0 - Security Release · heimdal/heimdal · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Third Party Advisory
Comparing 3e58559...bbafe72 · heimdal/heimdal · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
[SECURITY] Fedora 30 Update: heimdal-7.7.0-2.fc30 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[security-announce] openSUSE-SU-2019:1888-1: moderate: Security update f af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[security-announce] openSUSE-SU-2019:1682-1: moderate: Security update f af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Debian -- Security Information -- DSA-4455-1 heimdal af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
[Heimdal-announce] Heimdal 7.6 security release announcement af854a3a-2127-422b-91ae-364da2661108 www.h5l.org Patch, Vendor Advisory
CVE-2019-12098: krb5: always confirm PA-PKINIT-KX for anon PKINIT · heimdal/heimdal@2f7f3d9 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
[security-announce] openSUSE-SU-2019:1688-1: moderate: Security update f af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Bugtraq: [SECURITY] [DSA 4455-1] heimdal security update af854a3a-2127-422b-91ae-364da2661108 seclists.org Mailing List, Third Party Advisory
[SECURITY] Fedora 31 Update: heimdal-7.7.0-2.fc31 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 30 Update: heimdal-7.7.0-2.fc30 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 31 Update: heimdal-7.7.0-2.fc31 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 198986 Ubuntu Security Notification for Heimdal Vulnerabilities (USN-5675-1)
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