#VU15900 Buffer overflow in Asterisk Open Source - CVE-2018-19278
Published: November 15, 2018
Vulnerability identifier: #VU15900
Vulnerability risk: Medium
CVSSv4.0: 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:P/U:Green
CVE-ID: CVE-2018-19278
CWE-ID: CWE-120
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
Asterisk Open Source
Asterisk Open Source
Software vendor:
Digium (Linux Support Services)
Digium (Linux Support Services)
Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to buffer overflow in dns_srv and dns_naptr functions when handling malicious input. A remote attacker can supply a specially crafted DNS SRV or NAPTR response, trigger segfault and cause the service to crash.
The weakness exists due to buffer overflow in dns_srv and dns_naptr functions when handling malicious input. A remote attacker can supply a specially crafted DNS SRV or NAPTR response, trigger segfault and cause the service to crash.
Remediation
The vulnerability has been fixed in the version 15.6.2, 16.0.1.