CVE-2012-0920 · cross-distro fix matrix

CVE-2012-0920: Use-after-free vulnerability in Dropbear SSH Server 0.52 through 2012.54, when command restriction and public key authentication are enabled, allows remote authenticated users to execute arbitrary code and bypass command restrictions via multiple crafted command requests, related to "channels concur

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

Fix per ecosystem

Each block below is a distro release where CVE-2012-0920 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

dropbear→ fixed in2012.55-1urgency: low

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

Debian bookworm

Source: Debian Security Tracker

dropbear→ fixed in2012.55-1urgency: low

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

Debian trixie

Source: Debian Security Tracker

dropbear→ fixed in2012.55-1urgency: low

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

Are YOU affected by CVE-2012-0920?

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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Form-based quickscan View on NVD

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