Security Information

Debian takes security very seriously. We handle all security problems brought to our attention and ensure that they are corrected within a reasonable timeframe. Many advisories are coordinated with other free software vendors and are published the same day a vulnerability is made public and we also have a Security Audit team that reviews the archive looking for new or unfixed security bugs.

Experience has shown that security through obscurity does not work. Public disclosure allows for more rapid and better solutions to security problems. In that vein, this page addresses Debian's status with respect to various known security holes, which could potentially affect Debian.

Debian also participates in security standardization efforts: the Debian Security Advisories are CVE-Compatible (review the cross references) and Debian is represented in the Board of the Open Vulnerability Assessment Language project.

Keeping your Debian system secure

In order to receive the latest Debian security advisories, subscribe to the debian-security-announce mailing list.

You can use apt to easily get the latest security updates. This requires a line such as

deb stretch/updates main contrib non-free

in your /etc/apt/sources.list file. Then execute apt-get update && apt-get upgrade to download and apply the pending updates. The security archive is signed with the normal Debian archive signing keys.

For more information about security issues in Debian, please refer to the Security Team FAQ and a manual called Securing Debian.

Recent Advisories

These web pages include a condensed archive of security advisories posted to the debian-security-announce list.

[24 Feb 2018] DSA-4123 drupal7 security update
[23 Feb 2018] DSA-4122 squid3 security update
[22 Feb 2018] DSA-4121 gcc-6 security update
[22 Feb 2018] DSA-4120 linux security update
[19 Feb 2018] DSA-4119 libav security update
[17 Feb 2018] DSA-4118 tomcat-native security update
[17 Feb 2018] DSA-4117 gcc-4.9 security update
[16 Feb 2018] DSA-4116 plasma-workspace security update
[15 Feb 2018] DSA-4115 quagga security update
[15 Feb 2018] DSA-4114 jackson-databind security update
[14 Feb 2018] DSA-4113 libvorbis security update
[14 Feb 2018] DSA-4112 xen security update
[11 Feb 2018] DSA-4111 libreoffice security update
[10 Feb 2018] DSA-4110 exim4 security update
[09 Feb 2018] DSA-4109 ruby-omniauth security update
[09 Feb 2018] DSA-4108 mailman security update
[07 Feb 2018] DSA-4107 django-anymail security update
[07 Feb 2018] DSA-4106 libtasn1-6 security update
[06 Feb 2018] DSA-4105 mpv security update
[04 Feb 2018] DSA-4104 p7zip security update
[31 Jan 2018] DSA-4103 chromium-browser security update
[30 Jan 2018] DSA-4102 thunderbird security update
[28 Jan 2018] DSA-4101 wireshark security update
[27 Jan 2018] DSA-4100 tiff security update
[27 Jan 2018] DSA-4099 ffmpeg security update
[26 Jan 2018] DSA-4098 curl security update

The latest Debian security advisories are also available in RDF format. We also offer a second file that includes the first paragraph of the corresponding advisory so you can see in it what the advisory is about.

The older security advisories are also available: 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997 and undated security advisories, included for posterity.

Debian distributions are not vulnerable to all security problems. The Debian Security Tracker collects all information about the vulnerability status of Debian packages, and can be searched by CVE name or by package.

Contact Information

Please read the Security Team FAQ before contacting us, your question may well be answered there already!

The contact information is in the FAQ as well.