CVE-2018-12020 · cross-distro fix matrix

CVE-2018-12020: mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the "--status-fd 2" option. For example, the OpenPGP data might represent a

Affects 8 Linux releases across 12 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2018-12020 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

enigmail→ fixed in2:2.0.7-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y enigmail
```
gnupg1→ fixed in1.4.22-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnupg1
```
gnupg2→ fixed in2.2.8-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnupg2
```

Debian bookworm

Source: Debian Security Tracker

gnupg1→ fixed in1.4.22-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnupg1
```
gnupg2→ fixed in2.2.8-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnupg2
```

Debian trixie

Source: Debian Security Tracker

gnupg1→ fixed in1.4.22-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnupg1
```
gnupg2→ fixed in2.2.8-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnupg2
```

Alpine v3.20

Source: Alpine secdb

gnupg→ fixed in2.2.8-r0
```
apk update && apk add --upgrade gnupg
```

Alpine v3.21

Source: Alpine secdb

gnupg→ fixed in2.2.8-r0
```
apk update && apk add --upgrade gnupg
```

Alpine edge

Source: Alpine secdb

gnupg→ fixed in2.2.8-r0
```
apk update && apk add --upgrade gnupg
```

Alpine v3.18

Source: Alpine secdb

gnupg→ fixed in2.2.8-r0
```
apk update && apk add --upgrade gnupg
```

Alpine v3.19

Source: Alpine secdb

gnupg→ fixed in2.2.8-r0
```
apk update && apk add --upgrade gnupg
```

Are YOU affected by CVE-2018-12020?

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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