Denial of service - CVE-2016-6876
Published: September 7, 2016 / Updated: September 8, 2016
Vulnerability identifier: #VU364
CSH Severity: Medium
CVSS v4.0: 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-2016-6876
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor:
Affected software:
Detailed vulnerability description
A remote user can provoke and excessive resources spending and bring the service to crash.
A remote user can return a specially crafted reply to DNS request from 'RESOLV::lookup' and cause excessive resource consumption or possible Traffic Management Microkernel (TMM) crash.
Successful exploitation of this vulnerability will allow an attacker to cause a denial of service, however requires that the system uses the 'RESOLV::lookup' iRule command to resolve PTR records.
How to mitigate CVE-2016-6876
Install patched version from vendor's website:
https://support.f5.com/kb/en-us/solutions/public/k/52/sol52638558.html
https://support.f5.com/kb/en-us/solutions/public/k/52/sol52638558.html