StackPatch is liveSee product

Back to CVE digest
CVE-2020-28896 · cross-distro fix matrix

CVE-2020-28896: Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials be

Affects 8 Linux releases across 11 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2020-28896 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • mutt→ fixed in2.0.2-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y mutt
  • neomutt→ fixed in20201120+dfsg.1-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y neomutt

Debian bookworm

Source: Debian Security Tracker

  • mutt→ fixed in2.0.2-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y mutt
  • neomutt→ fixed in20201120+dfsg.1-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y neomutt

Debian trixie

Source: Debian Security Tracker

  • mutt→ fixed in2.0.2-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y mutt
  • neomutt→ fixed in20201120+dfsg.1-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y neomutt

Alpine v3.20

Source: Alpine secdb

  • mutt→ fixed in2.0.2-r0
    apk update && apk add --upgrade mutt

Alpine v3.21

Source: Alpine secdb

  • mutt→ fixed in2.0.2-r0
    apk update && apk add --upgrade mutt

Alpine edge

Source: Alpine secdb

  • mutt→ fixed in2.0.2-r0
    apk update && apk add --upgrade mutt

Alpine v3.18

Source: Alpine secdb

  • mutt→ fixed in2.0.2-r0
    apk update && apk add --upgrade mutt

Alpine v3.19

Source: Alpine secdb

  • mutt→ fixed in2.0.2-r0
    apk update && apk add --upgrade mutt
Are YOU affected by CVE-2020-28896?

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
Continuous monitoring beats manual checking

CVE-2020-28896dropped 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.

See StackPatch ($99 lifetime)