Improper input validation in Asterisk Open Source - CVE-2018-7284
Published: February 22, 2018 / Updated: June 17, 2021
Vulnerability identifier: #VU10698
CSH Severity: Low
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:P/U:Clear
CVE-ID: CVE-2018-7284
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Digium (Linux Support Services)
Affected software:
Asterisk Open Source
Asterisk Open Source
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to improper input validation. A remote attacker can send a SUBSCRIBE request with specially crafted Accept headersб trigger a flaw in the 'res_pjsip_pubsub' module and cause the target service to crash.
The weakness exists due to improper input validation. A remote attacker can send a SUBSCRIBE request with specially crafted Accept headersб trigger a flaw in the 'res_pjsip_pubsub' module and cause the target service to crash.
How to mitigate CVE-2018-7284
Update to version 13.19.2, 14.7.6, 15.2.2.