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CVE-2010-3696

4.3 · MEDIUM

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 caus…

Published Oct 7, 2010freeradiusCWE-399EPSS 1.62%

Overview

CVE-2010-3696 is a medium-severity vulnerability affecting freeradius freeradius. It was published on October 7, 2010 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from freeradius. Update freeradius to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Reffreeradius.org/press/index.html#2.1.10GitHubgithub.com/alandekok/freeradius-server/commit/4dc7800b866f889a1247685bbaa6dd4238a56279Refsecunia.com/advisories/41621Refwww.openwall.com/lists/oss-security/2010/10/01/3Refwww.openwall.com/lists/oss-security/2010/10/01/8Refbugs.freeradius.org/bugzilla/show_bug.cgi?id=77Refbugzilla.redhat.com/show_bug.cgi?id=639390Reffreeradius.org/press/index.html#2.1.10GitHubgithub.com/alandekok/freeradius-server/commit/4dc7800b866f889a1247685bbaa6dd4238a56279Refsecunia.com/advisories/41621

How CyberStrike helps

Frequently asked questions

What is CVE-2010-3696?

CVE-2010-3696 is a medium-severity vulnerability affecting freeradius freeradius. It was published on October 7, 2010 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2010-3696?

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2010-3696?

Check the references section for vendor advisories and patches from freeradius. Update freeradius to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2010-3696?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2010-3696 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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