#VU10698 Improper input validation in Asterisk Open Source - CVE-2018-7284

Vulnerability identifier: #VU10698

Vulnerability risk: Low

CVSSv4.0: 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

Vulnerable software:
Asterisk Open Source

Software vendor:
Digium (Linux Support Services)

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.

Update to version 13.19.2, 14.7.6, 15.2.2.

• http://downloads.asterisk.org/pub/security/AST-2018-004.html