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CVE-2021-31878

Published: 30 July 2021

An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request.

Priority

Low

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
asterisk
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Needs triage

bionic Needs triage

focal Needs triage

upstream Not vulnerable
(debian: Vulnerability introduced in 16.17.0)
impish Ignored
(end of life)
hirsute Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
jammy Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H