Input validation error in ISC kea

1) Input validation error

EUVDB-ID: #VU40568

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-2015-8373

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to a crash the entire system.

The kea-dhcp4 and kea-dhcp6 servers 0.9.2 and 1.0.0-beta in ISC Kea, when certain debugging settings are used, allow remote attackers to cause a denial of service (daemon crash) via a malformed packet.

Mitigation

Install update from vendor's website.

Vulnerable software versions

kea: 0.9.2 - 1.0.0

CPE2.3

• cpe:2.3::isc:kea:0.9.2:*:*:*:*:*:*:*
• cpe:2.3::isc:kea:1.0.0:*:*:*:*:*:*:*

External links

https://lists.fedoraproject.org/pipermail/package-announce/2016-January/175218.html
https://lists.fedoraproject.org/pipermail/package-announce/2016-January/175337.html
https://kb.isc.org/article/AA-01318

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.