The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Asterisk: denial of service via res_pjsip_diversion

Synthesis of the vulnerability 

An attacker can trigger a fatal error via res_pjsip_diversion of Asterisk, in order to trigger a denial of service.
Impacted systems: Asterisk Open Source.
Severity of this alert: 2/4.
Creation date: 18/02/2021.
Références of this alert: AST-2021-001, CERTFR-2021-AVI-136, CVE-2020-35776, VIGILANCE-VUL-34613.

Description of the vulnerability 

An attacker can trigger a fatal error via res_pjsip_diversion of Asterisk, in order to trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This threat impacts software or systems such as Asterisk Open Source.

Our Vigil@nce team determined that the severity of this computer threat is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this cybersecurity bulletin.

Solutions for this threat 

Asterisk: version 18.2.1.
The version 18.2.1 is fixed:
  https://www.asterisk.org/downloads/

Asterisk: version 17.9.2.
The version 17.9.2 is fixed:
  https://www.asterisk.org/downloads/

Asterisk: version 16.16.1.
The version 16.16.1 is fixed:
  https://www.asterisk.org/downloads/

Asterisk: version 13.38.2.
The version 13.38.2 is fixed:
  https://www.asterisk.org/downloads/
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a computers vulnerabilities database. The technology watch team tracks security threats targeting the computer system.