Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | freeradius | 3.0.17+dfsg-1.1 | — |
| Debian 13 | freeradius | 3.0.17+dfsg-1.1 | — |
| Debian 12 | freeradius | 3.0.17+dfsg-1.1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | freeradius | 3.0.16+dfsg-1ubuntu3.1 | USN-3954-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | freeradius +11 | 3.0.17-4.module+el8.0.0+3108+851cb559 | RHSA-2019:1142 |
| RHEL 7 | freeradius +11 | 3.0.13-10.el7_6 | RHSA-2019:1131 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | freeradius-server | 3.0.16-3.3.1 | SUSE-SU-2019:1086-1 |
| SLES 12 SP4 | freeradius-server | 3.0.15-2.11.2 | SUSE-SU-2019:1181-1 |
| SLES 12 SP3 | freeradius-server | 3.0.15-2.11.2 | SUSE-SU-2019:1181-1 |
| SLES 12 SP2 | freeradius-server | 3.0.3-17.12.1 | SUSE-SU-2019:1039-1 |
| SLES 12 SP1 | freeradius-server | 3.0.3-17.12.1 | SUSE-SU-2019:1039-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | freeradius-server | 3.0.3-17.12.1 | SUSE-SU-2019:1039-1 |
| SLES for SAP 12 SP4 | freeradius-server | 3.0.15-2.11.2 | SUSE-SU-2019:1181-1 |
| SLES for SAP 12 SP3 | freeradius-server | 3.0.15-2.11.2 | SUSE-SU-2019:1181-1 |
| SLES for SAP 12 SP2 | freeradius-server | 3.0.3-17.12.1 | SUSE-SU-2019:1039-1 |
| SLES for SAP 12 SP1 | freeradius-server | 3.0.3-17.12.1 | SUSE-SU-2019:1039-1 |
| SUSE OpenStack Cloud 7 | freeradius-server | 3.0.3-17.12.1 | SUSE-SU-2019:1039-1 |
| SUSE Enterprise Storage 4 | freeradius-server | 3.0.3-17.12.1 | SUSE-SU-2019:1039-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | freeradius-server | 3.0.16-lp151.4.3.1 | openSUSE-SU-2020:0542-1 |
| openSUSE Leap 15.0 | freeradius-server | 3.0.16-lp150.2.3.1 | openSUSE-SU-2019:1346-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | freeradius | 3.0.19-r0 | — |
| Alpine v3.23 | freeradius | 3.0.19-r0 | — |
| Alpine v3.22 | freeradius | 3.0.19-r0 | — |
| Alpine v3.21 | freeradius | 3.0.19-r0 | — |
| Alpine v3.20 | freeradius | 3.0.19-r0 | — |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | freeradius | 3.0.19-r0 | — |
| Alpine v3.18 | freeradius | 3.0.19-r0 | — |
| Alpine v3.17 | freeradius | 3.0.19-r0 | — |
| Alpine v3.16 | freeradius | 3.0.19-r0 | — |
| Alpine v3.15 | freeradius | 3.0.19-r0 | — |
| Alpine v3.14 | freeradius | 3.0.19-r0 | — |
| Alpine v3.13 | freeradius | 3.0.19-r0 | — |
| Alpine v3.12 | freeradius | 3.0.19-r0 | — |
| Alpine v3.11 | freeradius | 3.0.19-r0 | — |
| Alpine v3.10 | freeradius | 3.0.19-r0 | — |
| Alpine v3.9 | freeradius | 3.0.17-r5 | — |
| Alpine v3.8 | freeradius | 3.0.17-r3 | — |
| Alpine v3.7 | freeradius | 3.0.15-r4 | — |
| Alpine v3.6 | freeradius | 3.0.13-r3 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | freeradius +11 | 3.0.13-10.amzn2 | ALAS2-2019-1218 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | freeradius +11 | 3.0.17-4.module+el8.0.0+5208+733fb731 | ELSA-2019-1142 |
| Oracle Linux 7 | freeradius +11 | 3.0.13-10.el7_6 | ELSA-2019-1131 |
Advisories 11
- RHSA-2019:1131 Red Hat Security Advisory: freeradius security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-3954-1 freeradius vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2019:1346-1 Security update for freeradius-server SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0542-1 Security update for freeradius-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1181-1 Security update for freeradius-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1086-1 Security update for freeradius-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1039-1 Security update for freeradius-server SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2019:1142 Red Hat Security Advisory: freeradius:3.0 security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- ELSA-2019-1142 Important: freeradius:3.0 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 30, 2019
- ALAS2-2019-1218 Important: freeradius security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 30, 2019
- ELSA-2019-1131 Important: freeradius security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 9, 2019
References
- https://freeradius.org/release_notes/?br=3.0.x&re=3.0.19
- https://papers.mathyvanhoef.com/dragonblood.pdf
- https://www.kb.cert.org/vuls/id/871675/
- https://freeradius.org/security/
- https://bugzilla.redhat.com/show_bug.cgi?id=1695748
- USN-3954-1 vendor-advisory
- openSUSE-SU-2019:1346 vendor-advisory
- RHSA-2019:1131 vendor-advisory
- RHSA-2019:1142 vendor-advisory
- openSUSE-SU-2019:1394 vendor-advisory
- openSUSE-SU-2020:0542 vendor-advisory