Making a distribution secure
There's no dearth of Linux distributions to choose from. With so many to choose from, one might think it's as easy as picking up the Linux kernel, throwing in a few applications, setting up respositories, making ISOs and you've got a shiny new Linux distro. Well, there's more to a Linux distro than assembling applications and making sure everything works. A lot of time and effort, at least for major distros, is spent on making the distribution secure and getting updates out in a timely fashion.
To start with, all major distributions have security teams that collaborate with the main release team to ensure no vulnerable packages make their way into the final release. For example, Chris Gianelloni, release engineering strategic lead of Gentoo says that the release engineering team works with Gentoo's security team and individual architecture teams to make sure Gentoo doesn't have security vulnerabilities when Gentoo is released.
Tools of the trade
The various distributions use different means of capturing vulnerabilities in packages. Debian's Moritz Muehlenhoff points to Debian's Security Tracker which keeps track of bugs reported by their own team, as well as from other sources like the National Vulnerability Database (NVD).
"During preparation for a new release, the security response team audits the packages in the release to ensure that we ship with as few public vulnerabilities as possible," says Mark Cox of the Red Hat security response team.
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