#VU7552 Buffer overflow in FreeRADIUS - CVE-2017-10978

Vulnerability identifier: #VU7552

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-10978

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FreeRADIUS
Server applications / Directory software, identity management

Vendor: FreeRADIUS Server Project

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to boundary error in make_secret() function when processing RADIUS packets. A remote unauthenticated attacker can send a specially crafted RADIUS packet and crash the affected server.

Successful exploitation of this vulnerability may result in denial of service attack.

Mitigation
Update to version 2.2.10 or 3.0.15.

Vulnerable software versions

FreeRADIUS: 2.2.0 - 3.0.14

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External links
https://freeradius.org/security/fuzzer-2017.html#FR-GV-201

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.