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CVE-2022-42705

nvd nist
Published: Dec 5, 2022Modified: Apr 24, 2025

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.8 / Impact: 3.6
Source: NVD

Description

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.

Affected (5)

Sangoma
2 products
Asterisk
Certified Asterisk
Configuration A
5 vulnerable
Vulnerable SoftwareAffected Versions
Sangoma
Asterisk
From 16.0.0 to 16.29.1
Asterisk
From 18.14.0 to 18.15.1
Asterisk
From 19.6.0 to 19.7.1
Asterisk
Version 20.0.0
Certified Asterisk
Version 18.9 cert2

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (6)

Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.