CVE-2022-42705

A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription.

CVSS v3.0 6.5 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://downloads.asterisk.org/pub/security/AST-2022-008.html	Patch Vendor Advisory
https://downloads.asterisk.org/pub/security/AST-2022-008.html	Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html
https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html
https://www.debian.org/security/2023/dsa-5358
https://www.debian.org/security/2023/dsa-5358

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2::::::
	cpe:2.3:a:sangoma:asterisk::::::::
	cpe:2.3:a:sangoma:asterisk::::::::
	cpe:2.3:a:sangoma:asterisk::::::::
	cpe:2.3:a:sangoma:asterisk:20.0.0:::::::*

History

24 Apr 2025, 15:15

Type	Values Removed	Values Added
References	~~(DEBIAN) https://www.debian.org/security/2023/dsa-5358 -~~	() https://www.debian.org/security/2023/dsa-5358 -
References	~~(MLIST) https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html -~~	() https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html -
References	~~(MISC) https://downloads.asterisk.org/pub/security/AST-2022-008.html - Patch, Vendor Advisory~~	() https://downloads.asterisk.org/pub/security/AST-2022-008.html - Patch, Vendor Advisory

Information

Published : 2022-12-05 21:15

Updated : 2025-04-24 15:15

NVD link : CVE-2022-42705

Mitre link : CVE-2022-42705

JSON object : View

Products Affected

sangoma

asterisk
certified_asterisk

CWE

CWE-416

Use After Free

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