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.
[20 Apr 2018] DSA-4178 libreoffice security update
[20 Apr 2018] DSA-4177 libsdl2-image security update
[20 Apr 2018] DSA-4176 mysql-5.5 security update
[18 Apr 2018] DSA-4175 freeplane security update
[17 Apr 2018] DSA-4174 corosync security update
[16 Apr 2018] DSA-4173 r-cran-readxl security update
[14 Apr 2018] DSA-4172 perl security update
[13 Apr 2018] DSA-4171 ruby-loofah security update
[11 Apr 2018] DSA-4169 pcs security update
[09 Apr 2018] DSA-4170 pjproject security update
[08 Apr 2018] DSA-4168 squirrelmail security update
[05 Apr 2018] DSA-4167 sharutils security update
[04 Apr 2018] DSA-4166 openjdk-7 security update
[03 Apr 2018] DSA-4165 ldap-account-manager security update
[03 Apr 2018] DSA-4164 apache2 security update
[02 Apr 2018] DSA-4163 beep security update
[01 Apr 2018] DSA-4162 irssi security update
[01 Apr 2018] DSA-4161 python-django security update
[01 Apr 2018] DSA-4160 libevt security update
[01 Apr 2018] DSA-4159 remctl security update
[29 Mar 2018] DSA-4158 openssl1.0 security update
[29 Mar 2018] DSA-4157 openssl security update
[29 Mar 2018] DSA-4156 drupal7 security update
[28 Mar 2018] DSA-4155 thunderbird security update
[28 Mar 2018] DSA-4154 net-snmp security update
[27 Mar 2018] DSA-4153 firefox-esr security update
[27 Mar 2018] DSA-4152 mupdf security update
[26 Mar 2018] DSA-4151 librelp 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.