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 http://security.debian.org/ etch/updates main contrib non-free

in your /etc/apt/sources.list file.

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.

[02 Jan 2009] DSA-1695 ruby1.8, ruby1.9
memory leak
[02 Jan 2009] DSA-1694 xterm
design flaw
[27 Dec 2008] DSA-1693 phppgadmin
several vulnerabilities
[27 Dec 2008] DSA-1692 php-xajax
insufficient input sanitising
[22 Dec 2008] DSA-1691 moodle
several vulnerabilities
[22 Dec 2008] DSA-1690 avahi
assert errors
[21 Dec 2008] DSA-1689 proftpd-dfsg
missing input validation
[20 Dec 2008] DSA-1688 courier-authlib
SQL injection
[15 Dec 2008] DSA-1687 linux-2.6
denial of service/privilege escalation
[14 Dec 2008] DSA-1686 no-ip
buffer overflow
[12 Dec 2008] DSA-1685 uw-imap
buffer overflows, null pointer dereference
[10 Dec 2008] DSA-1684 lcms
multiple vulnerabilities
[08 Dec 2008] DSA-1683 streamripper
buffer overflow
[07 Dec 2008] DSA-1682 squirrelmail
insufficient input sanitising

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:

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.