CVE-2022-42705
Last modified
CVE-2022-42705 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 1.24% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| 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 | Cert2 |
References
- https://downloads.asterisk.org/pub/security/AST-2022-008.htmlPatch, Vendor Advisory
- https://downloads.asterisk.org/pub/security/AST-2022-008.htmlPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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