CVE-2009-1956 · cross-distro fix matrix

CVE-2009-1956: Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.

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

Fix per ecosystem

Each block below is a distro release where CVE-2009-1956 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

apr-util→ fixed in1.3.7+dfsg-1urgency: low

sudo apt-get install --only-upgrade -y apr-util

Debian bookworm

Source: Debian Security Tracker

apr-util→ fixed in1.3.7+dfsg-1urgency: low

sudo apt-get install --only-upgrade -y apr-util

Debian trixie

Source: Debian Security Tracker

apr-util→ fixed in1.3.7+dfsg-1urgency: low

sudo apt-get install --only-upgrade -y apr-util

Are YOU affected by CVE-2009-1956?

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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