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CVE-2023-0459 · cross-distro fix matrix

CVE-2023-0459: Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55

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

Fix per ecosystem

Each block below is a distro release where CVE-2023-0459 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • linux→ fixed in5.10.178-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux

Debian bookworm

Source: Debian Security Tracker

  • linux→ fixed in6.1.15-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux

Debian trixie

Source: Debian Security Tracker

  • linux→ fixed in6.1.15-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linux
Are YOU affected by CVE-2023-0459?

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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