Denial of service in Asterisk Open Source - #VU10717
Published: February 26, 2018
Vulnerability identifier: #VU10717
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Digium (Linux Support Services)
Affected software:
Asterisk Open Source
Asterisk Open Source
Detailed vulnerability description
The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.
The weakness exists due to insufficient validation of Session Description Protocol (SDP) messages. A remote attacker can submit a specially crafted SDP message, which contains an improper fmtp attribute and cause the service to crash.
The weakness exists due to insufficient validation of Session Description Protocol (SDP) messages. A remote attacker can submit a specially crafted SDP message, which contains an improper fmtp attribute and cause the service to crash.
Remediation
Update to version 13.19.2, 14.7.6, 15.2.2.