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

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