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/debian-security stretch/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.
[22 Jan 2018] DSA-4094 smarty3 security update
[21 Jan 2018] DSA-4093 openocd security update
[19 Jan 2018] DSA-4092 awstats security update
[18 Jan 2018] DSA-4091 mysql-5.5 security update
[17 Jan 2018] DSA-4090 wordpress security update
[16 Jan 2018] DSA-4089 bind9 security update
[15 Jan 2018] DSA-4088 gdk-pixbuf security update
[14 Jan 2018] DSA-4087 transmission security update
[13 Jan 2018] DSA-4086 libxml2 security update
[12 Jan 2018] DSA-4085 xmltooling security update
[12 Jan 2018] DSA-4084 gifsicle security update
[11 Jan 2018] DSA-4083 poco security update
[09 Jan 2018] DSA-4082 linux security update
[08 Jan 2018] DSA-4081 php5 security update
[08 Jan 2018] DSA-4080 php7.0 security update
[07 Jan 2018] DSA-4079 poppler security update
[04 Jan 2018] DSA-4078 linux security update
[30 Dec 2017] DSA-4077 gimp security update
[30 Dec 2017] DSA-4076 asterisk security update
[29 Dec 2017] DSA-4075 thunderbird security update
[28 Dec 2017] DSA-4074 imagemagick 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.
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.