CVE-2023-6004 · cross-distro fix matrix

CVE-2023-6004: A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the hostname parameter.

Affects 7 Linux releases across 7 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2023-6004 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libssh→ fixed in0.9.8-0+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libssh
```

Debian bookworm

Source: Debian Security Tracker

libssh→ fixed in0.10.6-0+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libssh
```

Debian trixie

Source: Debian Security Tracker

libssh→ fixed in0.10.6-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libssh
```

Alpine v3.20

Source: Alpine secdb

libssh→ fixed in0.10.6-r0
```
apk update && apk add --upgrade libssh
```

Alpine v3.21

Source: Alpine secdb

libssh→ fixed in0.10.6-r0
```
apk update && apk add --upgrade libssh
```

Alpine edge

Source: Alpine secdb

libssh→ fixed in0.10.6-r0
```
apk update && apk add --upgrade libssh
```

Alpine v3.19

Source: Alpine secdb

libssh→ fixed in0.10.6-r0
```
apk update && apk add --upgrade libssh
```

Are YOU affected by CVE-2023-6004?

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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