res_pjsip_t38 in Sangoma Asterisk 16.x before 16.16.2, 17.x before 17.9.3, and 18.x before 18.2.2, and Certified Asterisk before 16.8-cert7, allows an attacker to trigger a crash by sending an m=image line and zero port in a response to a T.38 re-invite initiated by Asterisk. This is a re-occurrence of the CVE-2019-15297 symptoms but not for exactly the same reason. The crash occurs because there is an append operation relative to the active topology, but this should instead be a replace operation.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-08-30T00:00:00

Updated: 2024-08-04T05:17:42.455Z

Reserved: 2022-08-30T00:00:00

Link: CVE-2021-46837

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2022-08-30T07:15:07.417

Modified: 2023-01-28T01:20:40.947

Link: CVE-2021-46837

cve-icon Redhat

No data.