Description
An FR-GV-205 issue in FreeRADIUS 2.x before 2.2.10 allows "DHCP - Buffer over-read in fr_dhcp_decode_options()" and a denial of service.
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 | 3.0.12+dfsg-3 | — |
| Debian 13 | freeradius | 3.0.12+dfsg-3 | — |
| Debian 12 | freeradius | 3.0.12+dfsg-3 | — |
| Debian 7 | freeradius | 2.1.12+dfsg-1.2+deb7u2 | DLA-1064-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | freeradius | 2.2.8+dfsg-0.1ubuntu0.1 | USN-3369-1 |
| Ubuntu 14.04 LTS | freeradius | 2.1.12+dfsg-1.2ubuntu8.2 | USN-3369-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | freeradius +8 | 2.2.6-7.el6_9 | RHSA-2017:1759 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | freeradius-server | 2.1.1-7.25.3.1 | SUSE-SU-2017:2244-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 11 SP4 | freeradius-server | 2.1.1-7.25.3.1 | SUSE-SU-2017:2244-1 |
Advisories 4
- RHSA-2017:1759 Red Hat Security Advisory: freeradius security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-3369-1 freeradius vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-1064-1 freeradius - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:2244-1 Security update for freeradius-server SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 1038914 vdb-entry
- RHSA-2017:1759 vendor-advisory
- 99912 vdb-entry
- DSA-3930 vendor-advisory
- http://freeradius.org/security/fuzzer-2017.html