CVE-2022-42705

published 2022-12-05

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…

Priority P4 32 medium 6.5 CVSS 3.1

AV N AC L PR L UI N S U C N I N A H

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

7 ranges

Vendor	Product	Version range	Fixed in
debian	asterisk	< asterisk 1:16.28.0~dfsg-0+deb11u2 (bullseye)	asterisk 1:16.28.0~dfsg-0+deb11u2 (bullseye)
sangoma	asterisk	—	—
sangoma	asterisk	>= 0 < 1:16.28.0~dfsg-0+deb11u2	1:16.28.0~dfsg-0+deb11u2
sangoma	asterisk	>= 16.0.0 < 16.29.1	16.29.1
sangoma	asterisk	>= 18.14.0 < 18.15.1	18.15.1
sangoma	asterisk	>= 19.6.0 < 19.7.1	19.7.1
sangoma	certified_asterisk	—	—

CVSS provenance

nvd v3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

osv 6.5 MEDIUM

vendor_debian 6.5 MEDIUM

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