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CVE-2014-7840 · cross-distro fix matrix

CVE-2014-7840: The host_from_stream_offset function in arch_init.c in QEMU, when loading RAM during migration, allows remote attackers to execute arbitrary code via a crafted (1) offset or (2) length value in savevm data.

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

Fix per ecosystem

Each block below is a distro release where CVE-2014-7840 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • qemu→ fixed in2.1+dfsg-8urgency: low
    sudo apt-get install --only-upgrade -y qemu

Debian bookworm

Source: Debian Security Tracker

  • qemu→ fixed in2.1+dfsg-8urgency: low
    sudo apt-get install --only-upgrade -y qemu

Debian trixie

Source: Debian Security Tracker

  • qemu→ fixed in2.1+dfsg-8urgency: low
    sudo apt-get install --only-upgrade -y qemu
Are YOU affected by CVE-2014-7840?

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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