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/ wheezy/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.
[16 Apr 2015] DSA-3228 ppp - security update
[15 Apr 2015] DSA-3227 movabletype-opensource - security update
[15 Apr 2015] DSA-3226 inspircd - security update
[15 Apr 2015] DSA-3225 gst-plugins-bad0.10 - security update
[12 Apr 2015] DSA-3224 libx11 - security update
[12 Apr 2015] DSA-3223 ntp - security update
[12 Apr 2015] DSA-3222 chrony - security update
[12 Apr 2015] DSA-3221 das-watchdog - security update
[11 Apr 2015] DSA-3220 libtasn1-3 - security update
[11 Apr 2015] DSA-3219 libdbd-firebird-perl - security update
[10 Apr 2015] DSA-3218 wesnoth-1.10 - security update
[09 Apr 2015] DSA-3217 dpkg - security update
[06 Apr 2015] DSA-3216 tor - security update
[06 Apr 2015] DSA-3215 libgd2 - security update
[06 Apr 2015] DSA-3214 mailman - security update
[06 Apr 2015] DSA-3213 arj - security update
[02 Apr 2015] DSA-3212 icedove - security update
[01 Apr 2015] DSA-3211 iceweasel - security update
[31 Mar 2015] DSA-3210 wireshark - security update
[30 Mar 2015] DSA-3209 openldap - security update
[29 Mar 2015] DSA-3208 freexl - security update
[28 Mar 2015] DSA-3207 shibboleth-sp2 - security update
[28 Mar 2015] DSA-3206 dulwich - security update
[27 Mar 2015] DSA-3205 batik - security update
[24 Mar 2015] DSA-3204 python-django - security update
[22 Mar 2015] DSA-3203 tor - security update
[22 Mar 2015] DSA-3202 mono - security update
[22 Mar 2015] DSA-3201 iceweasel - security update
[20 Mar 2015] DSA-3200 drupal7 - security update
[20 Mar 2015] DSA-3199 xerces-c - security update
[20 Mar 2015] DSA-3198 php5 - 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: 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.