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Fencer Vulns
critical 9.8

CVE-2019-11235 json

FreeRADIUS before 3.0.19 mishandles the "each participant verifies that the received scalar is within a range, and that the received group…

published 2019-04-21 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-2934

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.6%
EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

FreeRADIUS before 3.0.19 mishandles the "each participant verifies that the received scalar is within a range, and that the received group element is a valid point on the curve being used" protection mechanism, aka a "Dragonblood" issue, a similar issue to CVE-2019-9498 and CVE-2019-9499.

Patch / fix

  • freeradius freeradius 3.0.19
  • freeradius Debian 14, Debian 13, Debian 12 3.0.17+dfsg-1.1

debian advisories DEBIAN-CVE-2019-11235

  • freeradius Ubuntu 18.04 LTS 3.0.16+dfsg-1ubuntu3.1

ubuntu advisories UBUNTU-CVE-2019-11235

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • freeradius RHEL 7 3.0.13-10.el7_6
  • freeradius-krb5 RHEL 7 3.0.13-10.el7_6
  • freeradius-ldap RHEL 7 3.0.13-10.el7_6
  • freeradius-perl RHEL 7 3.0.13-10.el7_6
  • freeradius-mysql RHEL 7 3.0.13-10.el7_6
  • freeradius-utils RHEL 7 3.0.13-10.el7_6
  • freeradius-python RHEL 7 3.0.13-10.el7_6
  • freeradius-sqlite RHEL 7 3.0.13-10.el7_6

red hat advisories RHSA-2019:1131RHSA-2019:1142

  • freeradius-server SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES 12 SP4 +3 more 3.0.15-2.11.2
  • freeradius-server SLE Module for Server Applications 15 3.0.16-3.3.1
  • freeradius-server SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES 12-LTSS +5 more 3.0.3-17.12.1

suse advisories SUSE-SU-2019:1181-1SUSE-SU-2019:1086-1SUSE-SU-2019:1039-1

  • freeradius-server openSUSE Leap 15.1 3.0.16-lp151.4.3.1
  • freeradius-server openSUSE Leap 15.0 3.0.16-lp150.2.3.1

opensuse advisories openSUSE-SU-2020:0542-1openSUSE-SU-2019:1346-1

  • freeradius Alpine 3.24, Alpine 3.23, Alpine 3.22 +12 more 3.0.19-r0
  • freeradius Alpine 3.6 3.0.13-r3
  • freeradius Alpine 3.7 3.0.15-r4
  • freeradius Alpine 3.8 3.0.17-r3
  • freeradius Alpine 3.9 3.0.17-r5

alpine advisories ALPINE-CVE-2019-11235

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-11235 updated cvss 8.1

freeradius: eap-pwd: authentication bypass via an invalid curve attack

  • Red Hat Enterprise Linux AppStream (v. 8) freeradius 3.0.17-4.module+el8.0.0+3108+851cb559, freeradius-krb5 3.0.17-4.module+el8.0.0+3108+851cb559, freeradius-ldap 3.0.17-4.module+el8.0.0+3108+851cb559, freeradius-perl 3.0.17-4.module+el8.0.0+3108+851cb559, freeradius-rest 3.0.17-4.module+el8.0.0+3108+851cb559, freeradius-mysql 3.0.17-4.module+el8.0.0+3108+851cb559, +4 more
    fixed: vendor fix RHSA-2019:1142
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) freeradius 3.0.13-10.el7_6 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) freeradius-krb5 3.0.13-10.el7_6, freeradius-ldap 3.0.13-10.el7_6, freeradius-perl 3.0.13-10.el7_6, freeradius-mysql 3.0.13-10.el7_6, freeradius-utils 3.0.13-10.el7_6, freeradius-python 3.0.13-10.el7_6, +3 more Red Hat Enterprise Linux Server (v. 7) freeradius 3.0.13-10.el7_6 Red Hat Enterprise Linux Server Optional (v. 7) freeradius-krb5 3.0.13-10.el7_6, freeradius-ldap 3.0.13-10.el7_6, freeradius-perl 3.0.13-10.el7_6, freeradius-mysql 3.0.13-10.el7_6, freeradius-utils 3.0.13-10.el7_6, freeradius-python 3.0.13-10.el7_6, +3 more Red Hat Enterprise Linux Workstation (v. 7) freeradius 3.0.13-10.el7_6 Red Hat Enterprise Linux Workstation Optional (v. 7) freeradius-krb5 3.0.13-10.el7_6, freeradius-ldap 3.0.13-10.el7_6, freeradius-perl 3.0.13-10.el7_6, freeradius-mysql 3.0.13-10.el7_6, freeradius-utils 3.0.13-10.el7_6, freeradius-python 3.0.13-10.el7_6, +3 more
    fixed: vendor fix RHSA-2019:1131
  • Red Hat Enterprise Linux 5 freeradius, freeradius2 Red Hat Enterprise Linux 6 freeradius, freeradius-krb5, freeradius-ldap, freeradius-perl, freeradius-mysql, freeradius-utils, +3 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.57% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-345 Insufficient Verification of Data Authenticity

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.