Vulnerability in Heimdal Project
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.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.020 (80.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Heimdal Project
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 30, 31
- openSUSE Backports Sle — versions 15.0
- openSUSE Leap — versions 15.0, 15.1, 42.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/heimdal/heimdal/releases/tag/heimdal-7.6.0 (Third Party Advisory)
- www.h5l.org/pipermail/heimdal-announce/2019-May/000009.html (Patch, Vendor Advisory)
- github.com/heimdal/heimdal/commit/2f7f3d9960aa6ea21358bdf3687cee5149aa35cf (Patch, Third Party Advisory)
- github.com/heimdal/heimdal/compare/3e58559...bbafe72 (Patch, Third Party Advisory)
- seclists.org/bugtraq/2019/Jun/1 (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2019/dsa-4455 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00002.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00003.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2019-12098?
- CVE-2019-12098 is a high-severity vulnerability in Heimdal Project, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2019-05-15.
- How severe is CVE-2019-12098?
- High severity. CVSS v3 base score is 7.4 out of 10.
- Is CVE-2019-12098 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.