CVE-2015-5600 · cross-distro fix matrix

CVE-2015-5600: The kbdint_next_device function in auth2-chall.c in sshd in OpenSSH through 6.9 does not properly restrict the processing of keyboard-interactive devices within a single connection, which makes it easier for remote attackers to conduct brute-force attacks or cause a denial of service (CPU consumptio

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2015-5600 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

openssh→ fixed in1:6.9p1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssh
```

Debian bookworm

Source: Debian Security Tracker

openssh→ fixed in1:6.9p1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssh
```

Debian trixie

Source: Debian Security Tracker

openssh→ fixed in1:6.9p1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssh
```

Are YOU affected by CVE-2015-5600?

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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