CVEvulnerability
CVE-2022-42705
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-12-05
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-416
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 configurations
• sangoma asterisk (>= 16.0.0 < 16.29.1)
• sangoma asterisk (>= 18.14.0 < 18.15.1)
• sangoma asterisk (>= 19.6.0 < 19.7.1)
• sangoma asterisk 20.0.0
• sangoma certified asterisk 18.9
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://downloads.asterisk.org/pub/security/AST-2022-008.html Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html lists.debian.org
- https://www.debian.org/security/2023/dsa-5358 www.debian.org
- https://downloads.asterisk.org/pub/security/AST-2022-008.html Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html lists.debian.org
- https://www.debian.org/security/2023/dsa-5358 www.debian.org