Vulnerability identifier: #VU1043

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-2848

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ISC BIND
Server applications / DNS servers
Oracle VM Server for x86
Server applications / Other server solutions
Oracle Linux
Operating systems & Components / Operating system

Vendor: ISC
Oracle

Description
The vulnerability allows a remote unauthenticated user to perform DoS attack on the targete system.
The weakness is due to insuffcient handling of  options data in an OPT resource record. By sending a specially crafted DNS packet, attackers can trigger the named service to crash.
Successful exploitation of the vulnerability leads to denial of service on the vulnarable system.

Mitigation
Update to version 9.9.9-P3, 9.10.4-P3 or 9.11.0.

Vulnerable software versions

ISC BIND: 8.2.3 t1a - 9.9.1

Oracle VM Server for x86: 3.2 - 3.4

Oracle Linux: 5 - 6

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External links
http://kb.isc.org/article/AA-01433/74/CVE-2016-2848
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

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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.