Description
In FreeRADIUS 3.0 through 3.0.19, on average 1 in every 2048 EAP-pwd handshakes fails because the password element cannot be found within 10 iterations of the hunting and pecking loop. This leaks information that an attacker can use to recover the password of any user. This information leakage is similar to the "Dragonblood" attack and CVE-2019-9494.
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 | 3.0.20+dfsg-1 | — |
| Debian 13 | freeradius | 3.0.20+dfsg-1 | — |
| Debian 12 | freeradius | 3.0.20+dfsg-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | freeradius +11 | 3.0.17-7.module+el8.2.0+4847+336970e8 | RHSA-2020:1672 |
| RHEL 7 | freeradius +11 | 3.0.13-15.el7 | RHSA-2020:3984 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | freeradius-server | 3.0.16-3.6.1 | SUSE-SU-2020:1023-1 |
| SLES 15 | freeradius-server | 3.0.16-3.6.1 | SUSE-SU-2020:1023-1 |
| SLES 12 SP5 | freeradius-server | 3.0.19-3.3.1 | SUSE-SU-2020:1020-1 |
| SLES 12 SP4 | freeradius-server | 3.0.15-2.14.1 | SUSE-SU-2020:1018-1 |
| SLES 12 SP3 | freeradius-server | 3.0.15-2.14.1 | SUSE-SU-2020:1018-1 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | freeradius-server | 3.0.3-17.15.2 | SUSE-SU-2020:2391-1 |
| SLES for SAP 15 | freeradius-server | 3.0.16-3.6.1 | SUSE-SU-2020:1023-1 |
| SLES for SAP 12 SP5 | freeradius-server | 3.0.19-3.3.1 | SUSE-SU-2020:1020-1 |
| SLES for SAP 12 SP4 | freeradius-server | 3.0.15-2.14.1 | SUSE-SU-2020:1018-1 |
| SLES for SAP 12 SP3 | freeradius-server | 3.0.15-2.14.1 | SUSE-SU-2020:1018-1 |
| SLES for SAP 12 SP2 | freeradius-server | 3.0.3-17.15.2 | SUSE-SU-2020:2391-1 |
| SLE HPC 15 | freeradius-server | 3.0.16-3.6.1 | SUSE-SU-2020:1023-1 |
| SUSE OpenStack Cloud Crowbar 8 | freeradius-server | 3.0.15-2.14.1 | SUSE-SU-2020:1018-1 |
| SUSE OpenStack Cloud 8 | freeradius-server | 3.0.15-2.14.1 | SUSE-SU-2020:1018-1 |
| SUSE OpenStack Cloud 7 | freeradius-server | 3.0.3-17.15.2 | SUSE-SU-2020:2391-1 |
| SUSE HPE Helion OpenStack 8 | freeradius-server | 3.0.15-2.14.1 | SUSE-SU-2020:1018-1 |
| SUSE Enterprise Storage 5 | freeradius-server | 3.0.15-2.14.1 | SUSE-SU-2020:1018-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | freeradius-server | 3.0.23-1.5 | openSUSE-SU-2024:10767-1 |
| openSUSE Leap 15.1 | freeradius-server | 3.0.16-lp151.4.4.1 | openSUSE-SU-2020:0553-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | freeradius +11 | 3.0.13-15.amzn2 | ALAS2-2020-1515 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | freeradius +11 | 3.0.17-7.module+el8.2.0+5505+9f97be83 | ELSA-2020-1672 |
| Oracle Linux 7 | freeradius +11 | 3.0.13-15.el7 | ELSA-2020-3984 |
Advisories 11
- RHSA-2020:3984 Red Hat Security Advisory: freeradius security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- openSUSE-SU-2024:10767-1 freeradius-server-3.0.23-1.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1023-1 Security update for freeradius-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1018-1 Security update for freeradius-server SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0553-1 Security update for freeradius-server SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1020-1 Security update for freeradius-server SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2020:1672 Red Hat Security Advisory: freeradius:3.0 security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- SUSE-SU-2020:2391-1 Security update for freeradius-server SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2-2020-1515 Moderate: freeradius security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 22, 2020
- ELSA-2020-3984 Moderate: freeradius security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 6, 2020
- ELSA-2020-1672 Moderate: freeradius:3.0 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 5, 2020