Description
The fr_dhcp_decode function in lib/dhcp.c in FreeRADIUS 2.1.9, in certain non-default builds, does not properly handle the DHCP Relay Agent Information option, which allows remote attackers to cause a denial of service (infinite loop and daemon outage) via a packet that has more than one sub-option. NOTE: some of these details are obtained from third party information.
Metrics
CVSS 2.0 4.3/10
AV:N/AC:M/Au:N/C:N/I:N/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://freeradius.org/press/index.html#2.1.10
- http://github.com/alandekok/freeradius-server/commit/4dc7800b866f889a1247685bbaa6dd4238a56279Patch
- http://secunia.com/advisories/41621Vendor Advisory
- http://www.openwall.com/lists/oss-security/2010/10/01/3
- http://www.openwall.com/lists/oss-security/2010/10/01/8
- https://bugs.freeradius.org/bugzilla/show_bug.cgi?id=77Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=639390
- http://freeradius.org/press/index.html#2.1.10
- http://github.com/alandekok/freeradius-server/commit/4dc7800b866f889a1247685bbaa6dd4238a56279Patch
- http://secunia.com/advisories/41621Vendor Advisory
- http://www.openwall.com/lists/oss-security/2010/10/01/3
- http://www.openwall.com/lists/oss-security/2010/10/01/8
- https://bugs.freeradius.org/bugzilla/show_bug.cgi?id=77Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=639390
Timeline
- Published
- Oct 7, 2010
- Last modified
- Jun 16, 2026
- NVD status
- Modified