Denial of Service in Oracle products - CVE-2016-2776

Vulnerability identifier: #VU703

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:A/U:Green

CVE-ID: CVE-2016-2776

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vendor: ISC
Oracle

Affected software:
ISC BIND
Oracle Solaris
Oracle Linux
Oracle VM Server for x86

The vulnerability allow a remote unauthenticated user to cause denial of service (DoS) on the target system.
The weakness exists due to improper construction of queries responses, which meet certain criteria. By sending specially crafted query to the target service the attacker can trigger an assertion failure in buffer.c that leads to crash and denial of the service.
Successful exploitation of the vulnerability results in DoS condeitions on the vulnerable system.

Apply the following patches:

• BIND 9 version 9.9.9-P3
• BIND 9 version 9.10.4-P3
• BIND 9 version 9.11.0rc3

• https://kb.isc.org/article/AA-01419
• http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html