CVE-2013-4434 · cross-distro fix matrix

CVE-2013-4434: Dropbear SSH Server before 2013.59 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to discover valid usernames.

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

Fix per ecosystem

Each block below is a distro release where CVE-2013-4434 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

dropbear→ fixed in2012.55-1.4urgency: low

sudo apt-get install --only-upgrade -y dropbear

Debian bookworm

Source: Debian Security Tracker

dropbear→ fixed in2012.55-1.4urgency: low

sudo apt-get install --only-upgrade -y dropbear

Debian trixie

Source: Debian Security Tracker

dropbear→ fixed in2012.55-1.4urgency: low

sudo apt-get install --only-upgrade -y dropbear

Are YOU affected by CVE-2013-4434?

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

Form-based quickscan View on NVD

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