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CVE-2016-8635 · cross-distro fix matrix

CVE-2016-8635: It was found that Diffie Hellman Client key exchange handling in NSS 3.21.x was vulnerable to small subgroup confinement attack. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group.

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

Fix per ecosystem

Each block below is a distro release where CVE-2016-8635 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • nss→ fixed in2:3.25-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y nss

Debian bookworm

Source: Debian Security Tracker

  • nss→ fixed in2:3.25-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y nss

Debian trixie

Source: Debian Security Tracker

  • nss→ fixed in2:3.25-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y nss
Are YOU affected by CVE-2016-8635?

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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