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Medium severity6.5NVD Advisory· Published Dec 5, 2022· Updated Jun 17, 2026

CVE-2022-42705

CVE-2022-42705

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

5
  • Freepbx/Asterisk4 versions
    cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*range: >=16.0.0,<16.29.1
    • cpe:2.3:a:sangoma:asterisk:20.0.0:*:*:*:*:*:*:*
    • (no CPE)
    • (no CPE)range: 16.28, 18.14, 19.6, and certified/18.9-cert2
  • Freepbx/Certified Asterisk
    cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

3

News mentions

0

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