Debian bullseye
Source: Debian Security Tracker
asterisk→ fixed in1:16.28.0~dfsg-0+deb11u4urgency: not yet assignedsudo apt-get install --only-upgrade -y asterisk
Back to CVE digest
CVE-2023-49786 · cross-distro fix matrix
CVE-2023-49786: Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1; as well as certified-asterisk prior to 18.9-cert6; Asterisk is susceptible to a DoS due to a race condition in the hello handshake phase of the DTLS protocol when hand
Affects 6 Linux releases across 6 (distro × package) combinations.
Fix per ecosystem
Each block below is a distro release where CVE-2023-49786 has a known fix. Run the listed command on that distro to remediate.
Alpine v3.20
Source: Alpine secdb
asterisk→ fixed in20.5.1-r0apk update && apk add --upgrade asterisk
Alpine v3.21
Source: Alpine secdb
asterisk→ fixed in20.5.1-r0apk update && apk add --upgrade asterisk
Alpine edge
Source: Alpine secdb
asterisk→ fixed in20.5.1-r0apk update && apk add --upgrade asterisk
Alpine v3.18
Source: Alpine secdb
asterisk→ fixed in18.20.2-r0apk update && apk add --upgrade asterisk
Alpine v3.19
Source: Alpine secdb
asterisk→ fixed in20.5.1-r0apk update && apk add --upgrade asterisk
Are YOU affected by CVE-2023-49786?
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.
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