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CVE-2020-28327 · cross-distro fix matrix

CVE-2020-28327: A res_pjsip_session crash was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1. and Certified Asterisk before 16.8-cert5. Upon receiving a new SIP Invite, Asterisk did not return the created dialog locked or referenced. This caus

Affects 6 Linux releases across 6 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2020-28327 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • asterisk→ fixed in1:16.15.0~dfsg-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y asterisk

Alpine v3.20

Source: Alpine secdb

  • asterisk→ fixed in18.0.1-r0
    apk update && apk add --upgrade asterisk

Alpine v3.21

Source: Alpine secdb

  • asterisk→ fixed in18.0.1-r0
    apk update && apk add --upgrade asterisk

Alpine edge

Source: Alpine secdb

  • asterisk→ fixed in18.0.1-r0
    apk update && apk add --upgrade asterisk

Alpine v3.18

Source: Alpine secdb

  • asterisk→ fixed in18.0.1-r0
    apk update && apk add --upgrade asterisk

Alpine v3.19

Source: Alpine secdb

  • asterisk→ fixed in18.0.1-r0
    apk update && apk add --upgrade asterisk
Are YOU affected by CVE-2020-28327?

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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CVE-2020-28327dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

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