Buffer overflow in Certified Asterisk and Asterisk Open Source - CVE-2017-16671
Published: November 24, 2018 / Updated: November 26, 2018
Vulnerability identifier: #VU16064
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2017-16671
CWE-ID: CWE-120
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Digium (Linux Support Services)
Affected software:
Certified Asterisk
Asterisk Open Source
Certified Asterisk
Asterisk Open Source
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error when setting the user field for Party B on a CDR. A remote unauthenticated attacker can send a specially-crafted request, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2017-16671
Update Asterisk Open Source to version 13.18.1, 14.7.1,15.1.1.
Update Certified Asterisk to version 13.13-cert7.
Update Certified Asterisk to version 13.13-cert7.