Debian bullseye
Source: Debian Security Tracker
asterisk→ fixed in1:16.28.0~dfsg-0+deb11u2urgency: not yet assignedsudo apt-get install --only-upgrade -y asterisk
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CVE-2022-42705 · cross-distro fix matrix
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
Affects 6 Linux releases across 6 (distro × package) combinations.
Fix per ecosystem
Each block below is a distro release where CVE-2022-42705 has a known fix. Run the listed command on that distro to remediate.
Alpine v3.20
Source: Alpine secdb
asterisk→ fixed in18.15.1-r0apk update && apk add --upgrade asterisk
Alpine v3.21
Source: Alpine secdb
asterisk→ fixed in18.15.1-r0apk update && apk add --upgrade asterisk
Alpine edge
Source: Alpine secdb
asterisk→ fixed in18.15.1-r0apk update && apk add --upgrade asterisk
Alpine v3.18
Source: Alpine secdb
asterisk→ fixed in18.15.1-r0apk update && apk add --upgrade asterisk
Alpine v3.19
Source: Alpine secdb
asterisk→ fixed in18.15.1-r0apk update && apk add --upgrade asterisk
Are YOU affected by CVE-2022-42705?
5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.
curl https://mindsparkstack.com/scan.sh | bash
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