Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 72.6%
CVSS Severity
CVSS v3 Score 6.5
References
- https://downloads.asterisk.org/pub/security/AST-2022-008.html
- https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html
- https://www.debian.org/security/2023/dsa-5358
- https://downloads.asterisk.org/pub/security/AST-2022-008.html
- https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html
- https://www.debian.org/security/2023/dsa-5358
Products affected by CVE-2022-42705
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cpe:2.3:a:sangoma:asterisk:16.0.0
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cpe:2.3:a:sangoma:asterisk:16.10.0
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cpe:2.3:a:sangoma:asterisk:16.11.0
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cpe:2.3:a:sangoma:asterisk:16.12.0
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cpe:2.3:a:sangoma:asterisk:16.14.0
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cpe:2.3:a:sangoma:asterisk:16.14.1
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cpe:2.3:a:sangoma:asterisk:16.15.0
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cpe:2.3:a:sangoma:asterisk:16.16.0
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cpe:2.3:a:sangoma:asterisk:16.16.1
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cpe:2.3:a:sangoma:asterisk:16.5.0
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cpe:2.3:a:sangoma:asterisk:16.6.0
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cpe:2.3:a:sangoma:asterisk:16.7.0
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cpe:2.3:a:sangoma:asterisk:16.8.0
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cpe:2.3:a:sangoma:asterisk:16.9.0
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cpe:2.3:a:sangoma:asterisk:18.14.0
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cpe:2.3:a:sangoma:asterisk:18.15.0
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cpe:2.3:a:sangoma:asterisk:19.6.0
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cpe:2.3:a:sangoma:asterisk:19.7.0
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cpe:2.3:a:sangoma:asterisk:20.0.0
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cpe:2.3:a:sangoma:certified_asterisk:18.9