CVE-2012-4544 · cross-distro fix matrix

CVE-2012-4544: The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk (1) before or (2) after decompression, which allows local guest administrators to cause a denial of service (domain 0 memory consumption) via a crafted (a) kernel or (b) ramdisk.

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

Fix per ecosystem

Each block below is a distro release where CVE-2012-4544 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

xen→ fixed in4.1.3-4urgency: low

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

Debian bookworm

Source: Debian Security Tracker

xen→ fixed in4.1.3-4urgency: low

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

Debian trixie

Source: Debian Security Tracker

xen→ fixed in4.1.3-4urgency: low

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

Are YOU affected by CVE-2012-4544?

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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