#VU39361 NULL pointer dereference in FreeRADIUS - CVE-2015-8762

Vulnerability identifier: #VU39361

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-8762

CWE-ID: CWE-476

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 a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a zero-length EAP-PWD packet.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FreeRADIUS: 3.0.0 - 3.0.8

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External links
https://freeradius.org/security.html#eap-pwd-2015
https://www.openwall.com/lists/oss-security/2016/01/08/7

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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.