CVE-2020-28242

Published Nov 6, 2020 CVSS 3.1 · 6.5 Medium EPSS 1.5% KEV · Not listed
Description
An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2969-1 asterisk security update
EUVD EUVD EUVD-2020-20726 An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur.
History
Type Values Removed Values Added
First Time appeared Sangoma
Sangoma asterisk
CPEs cpe:2.3:a:asterisk:open_source:*:*:*:*:*:*:*:* cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*
Vendors & Products Asterisk open Source
Sangoma
Sangoma asterisk
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 4, 2024, 4:33 PM
Reserved
Nov 6, 2020, 12:00 AM
Status
Modified
Published
Nov 6, 2020, 6:15 AM
Modified
Jun 17, 2026, 3:10 AM