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CVE-2020-12460 · cross-distro fix matrix

CVE-2020-12460: OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null termination in the function opendmarc_xml_parse that can result in a one-byte heap overflow in opendmarc_xml when parsing a specially crafted DMARC aggregate report. This can cause remote memory corruption when a '\0' byte overw

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-12460 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • opendmarc→ fixed in1.4.0~beta1+dfsg-3urgency: not yet assigned
    sudo apt-get install --only-upgrade -y opendmarc

Debian bookworm

Source: Debian Security Tracker

  • opendmarc→ fixed in1.4.0~beta1+dfsg-3urgency: not yet assigned
    sudo apt-get install --only-upgrade -y opendmarc

Debian trixie

Source: Debian Security Tracker

  • opendmarc→ fixed in1.4.0~beta1+dfsg-3urgency: not yet assigned
    sudo apt-get install --only-upgrade -y opendmarc
Are YOU affected by CVE-2020-12460?

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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