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CVE-2020-8428 · cross-distro fix matrix

CVE-2020-8428: fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket,

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-8428 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • linux→ fixed in5.4.19-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux

Debian bookworm

Source: Debian Security Tracker

  • linux→ fixed in5.4.19-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux

Debian trixie

Source: Debian Security Tracker

  • linux→ fixed in5.4.19-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux
Are YOU affected by CVE-2020-8428?

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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