CVE-2019-12098
7.4
HIGH
CVSS 3.1
EPSS 2.1%
Description
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.
How to fix CVE-2019-12098
To remediate CVE-2019-12098, upgrade the affected package to a fixed version below.
- Alpine/heimdal—upgrade to 7.5.0-r5 or later
- Debian/heimdal—upgrade to 7.5.0+dfsg-3 or later
Is CVE-2019-12098 being exploited?
Low — EPSS is 2.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 7.5.0-r5
- from 0, < 7.5.0+dfsg-3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |