In CVE pages like CVE-2017-5754 I see per major version two releases one of them marked with "(security)". What does this mean? In the example the kernel fix Stretch (security) was released earlier. How do I add the repository to have my server fixed earlier with this release? Or is this unwise because it is may be unstable or untested with security priority in mind? Is there a Debian page that explains it?

  • 2
    No, not for Wheezy! Commented Jan 9, 2018 at 10:07
  • What about Stretch, which was recently released just now and is more of my interest? in /etc/apt/sources.list I have: deb http://security.debian.org/ stretch/updates main deb-src http://security.debian.org/ stretch/updates main I did not see the new kernel coming yet.
    – ñull
    Commented Jan 9, 2018 at 11:20
  • If you want stability; you are best using the tested kernel for the version you are currently running. Fixes that come out in a later kernel are backported to older kernels for older supported releases (with very few rare exceptions). Changes to /etc/apt/source.list et.al. take effect when you apt-get update and update repo lists, software loaded when you apt-get upgrade, dist-upgrade etc.
    – guiverc
    Commented Jan 9, 2018 at 23:01

1 Answer 1


“(security)” means the package is available in the security repositories, not in the main repositories. To get security updates for Wheezy, ensure you have

deb http://security.debian.org wheezy/updates main

in your repositories (typically in /etc/apt/sources.list). Updates made available in security repositories are ready for public consumption — you should upgrade as soon as you see one. However you should only use security repositories corresponding to the release you actually use — so only use the Wheezy repository above if you’re running Wheezy.

Packages are normally copied from the security repositories to the main repositories when a point release is made.

You’ll find relevant information on the Debian security page.

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