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.
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 http://security.debian.org/ jessie/updates main contrib non-free
/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
These web pages include a condensed archive of security advisories posted to the debian-security-announce list.
[24 May 2017] DSA-3861 libtasn1-6 security update
[24 May 2017] DSA-3860 samba security update
[19 May 2017] DSA-3859 dropbear security update
[19 May 2017] DSA-3858 openjdk-7 security update
[18 May 2017] DSA-3857 mysql-connector-java security update
[18 May 2017] DSA-3856 deluge security update
[18 May 2017] DSA-3855 jbig2dec security update
[15 May 2017] DSA-3853 bitlbee security update
[14 May 2017] DSA-3854 bind9 security update
[13 May 2017] DSA-3852 squirrelmail security update
[12 May 2017] DSA-3851 postgresql-9.4 security update
[12 May 2017] DSA-3850 rtmpdump security update
[12 May 2017] DSA-3849 kde4libs security update
[10 May 2017] DSA-3848 git security update
[09 May 2017] DSA-3847 xen security update
[09 May 2017] DSA-3846 libytnef security update
[08 May 2017] DSA-3845 libtirpc security update
[03 May 2017] DSA-3844 tiff security update
[03 May 2017] DSA-3843 tomcat8 security update
[03 May 2017] DSA-3842 tomcat7 security update
[02 May 2017] DSA-3841 libxstream-java security update
[02 May 2017] DSA-3840 mysql-connector-java security update
[28 Apr 2017] DSA-3839 freetype security update
[28 Apr 2017] DSA-3838 ghostscript security update
[27 Apr 2017] DSA-3837 libreoffice security update
[27 Apr 2017] DSA-3836 weechat security update
[26 Apr 2017] DSA-3835 python-django security update
[25 Apr 2017] DSA-3834 mysql-5.5 security update
[24 Apr 2017] DSA-3833 libav 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: 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.
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.