CVE-2010-3696

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-10-07 · updated 2026-06-16
Weakness: CWE-399

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.

Affected products

freeradius: 2.1.9

References

http://freeradius.org/press/index.html#2.1.10
http://github.com/alandekok/freeradius-server/commit/4dc7800b866f889a1247685bbaa6dd4238a56279
http://secunia.com/advisories/41621
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=77
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/4dc7800b866f889a1247685bbaa6dd4238a56279
http://secunia.com/advisories/41621
http://www.openwall.com/lists/oss-security/2010/10/01/3
http://www.openwall.com/lists/oss-security/2010/10/01/8

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