Security Information
Experience has shown that security through obscurity
never works. Therefore, public disclosure allows for quicker and better solutions of security problems. In that respect, this page addresses Debian's status regarding various known security holes, which could potentially affect the Debian operating system.
The Debian project coordinates many security advisories with other free software vendors, and as a result, these advisories are published the same day a vulnerability is made public. In order to receive the latest Debian security advisories, please subscribe to the debian-security-announce mailing list.
Debian also participates in security standardization efforts:
- The Debian Security Advisories are CVE-Compatible
- Debian publishes its security information using the Open Vulnerability Assessment Language (OVAL)
Keeping your Debian System secure
The packages unattended-upgrades can be installed to keep the computer current with the latest security (and other) updates automatically. The wiki entry has more detailed information how to manually set up unattended-upgrades.
For more information about security issues in Debian, please refer to our FAQ and our documentation:
Recent Advisories RSS
These are the recent Debian Security Advisories (DSA) posted to the debian-security-announce list.
T is the link to the Debian Security Tracker information, the DSA number links to the announcement mail.
[23 Nov 2024] T DSA-5817-1 chromium security update
[21 Nov 2024] T DSA-5812-2 postgresql-15 regression update
[19 Nov 2024] T DSA-5816-1 libmodule-scandeps-perl security update
[19 Nov 2024] T DSA-5815-1 needrestart security update
[15 Nov 2024] T DSA-5814-1 thunderbird security update
[15 Nov 2024] T DSA-5813-1 symfony security update
[15 Nov 2024] T DSA-5812-1 postgresql-15 security update
[11 Nov 2024] T DSA-5811-1 mpg123 security update
[11 Nov 2024] T DSA-5810-1 chromium security update
[11 Nov 2024] T DSA-5809-1 symfony security update
[11 Nov 2024] T DSA-5808-1 ghostscript security update
[10 Nov 2024] T DSA-5807-1 nss security update
[09 Nov 2024] T DSA-5806-1 libarchive security update
[08 Nov 2024] T DSA-5805-1 guix security update
[07 Nov 2024] T DSA-5804-1 webkit2gtk security update
[05 Nov 2024] T DSA-5803-1 thunderbird security update
[03 Nov 2024] T DSA-5802-1 chromium security update
[31 Oct 2024] T DSA-5801-1 firefox-esr security update
[29 Oct 2024] T DSA-5800-1 xorg-server security update
[28 Oct 2024] T DSA-5799-1 chromium security update
[26 Oct 2024] T DSA-5798-1 activemq security update
[25 Oct 2024] T DSA-5797-1 twisted security update
[25 Oct 2024] T DSA-5796-1 libheif security update
[21 Oct 2024] T DSA-5795-1 python-sql security update
[21 Oct 2024] T DSA-5794-1 openjdk-17 security update
[20 Oct 2024] T DSA-5793-1 chromium security update
[14 Oct 2024] T DSA-5792-1 webkit2gtk security update
[13 Oct 2024] T DSA-5791-1 python-reportlab security update
[13 Oct 2024] T DSA-5790-1 node-dompurify security update
[12 Oct 2024] T DSA-5789-1 thunderbird security update
[10 Oct 2024] T DSA-5788-1 firefox-esr security update
[09 Oct 2024] T DSA-5787-1 chromium security update
[08 Oct 2024] T DSA-5729-2 apache2 regression update
[05 Oct 2024] T DSA-5786-1 libgsf security update
[05 Oct 2024] T DSA-5785-1 mediawiki security update
[04 Oct 2024] T DSA-5784-1 oath-toolkit security update
[04 Oct 2024] T DSA-5783-1 firefox-esr security update
[03 Oct 2024] T DSA-5782-1 linux security update
[03 Oct 2024] T DSA-5781-1 chromium security update
[02 Oct 2024] T DSA-5780-1 php8.2 security update
[29 Sep 2024] T DSA-5779-1 cups security update
[29 Sep 2024] T DSA-5778-1 cups-filters security update
[27 Sep 2024] T DSA-5777-1 booth security update
[27 Sep 2024] T DSA-5776-1 tryton-server security update
[26 Sep 2024] T DSA-5775-1 chromium security update
[20 Sep 2024] T DSA-5774-1 ruby-saml security update
[19 Sep 2024] T DSA-5773-1 chromium security update
[17 Sep 2024] T DSA-5772-1 libreoffice security update
[17 Sep 2024] T DSA-5771-1 php-twig security update
[17 Sep 2024] T DSA-5770-1 expat security update
[13 Sep 2024] T DSA-5769-1 git security update
[11 Sep 2024] T DSA-5768-1 chromium security update
[08 Sep 2024] T DSA-5767-1 thunderbird security update
[05 Sep 2024] T DSA-5766-1 chromium security update
[04 Sep 2024] T DSA-5765-1 firefox-esr security update
[03 Sep 2024] T DSA-5764-1 openssl security update
[30 Aug 2024] T DSA-5763-1 pymatgen security update
[30 Aug 2024] T DSA-5762-1 webkit2gtk security update
[29 Aug 2024] T DSA-5761-1 chromium security update
[29 Aug 2024] T DSA-5760-1 ghostscript security update
[27 Aug 2024] T DSA-5759-1 python3.11 security update
[26 Aug 2024] T DSA-5758-1 trafficserver security update
[23 Aug 2024] T DSA-5757-1 chromium security update
[21 Aug 2024] T DSA-5756-1 nova security update
[21 Aug 2024] T DSA-5755-1 glance security update
[21 Aug 2024] T DSA-5754-1 cinder security update
[21 Aug 2024] T DSA-5753-1 aom security update
[21 Aug 2024] T DSA-5752-1 dovecot security update
[19 Aug 2024] T DSA-5751-1 squid security update
[18 Aug 2024] T DSA-5750-1 python-asyncssh security update
[14 Aug 2024] T DSA-5749-1 flatpak security update
[14 Aug 2024] T DSA-5748-1 ffmpeg security update
[13 Aug 2024] T DSA-5743-2 roundcube security update
[12 Aug 2024] T DSA-5747-1 linux security update
[09 Aug 2024] T DSA-5746-1 postgresql-13 security update
[09 Aug 2024] T DSA-5745-1 postgresql-15 security update
[08 Aug 2024] T DSA-5744-1 thunderbird security update
[08 Aug 2024] T DSA-5743-1 roundcube security update
[08 Aug 2024] T DSA-5742-1 odoo security update
[08 Aug 2024] T DSA-5741-1 chromium security update
[07 Aug 2024] T DSA-5740-1 firefox-esr security update
[06 Aug 2024] T DSA-5739-1 wpa security update
[06 Aug 2024] T DSA-5738-1 openjdk-17 security update
[05 Aug 2024] T DSA-5737-1 libreoffice security update
[05 Aug 2024] T DSA-5736-1 openjdk-11 security update
[31 Jul 2024] T DSA-5735-1 chromium security update
[27 Jul 2024] T DSA-5734-2 bind9 regression update
[25 Jul 2024] T DSA-5734-1 bind9 security update
[18 Jul 2024] T DSA-5733-1 thunderbird security update
[18 Jul 2024] T DSA-5732-1 chromium security update
[16 Jul 2024] T DSA-5731-1 linux security update
[15 Jul 2024] T DSA-5730-1 linux security update
[11 Jul 2024] T DSA-5729-1 apache2 security update
[10 Jul 2024] T DSA-5728-1 exim4 security update
[10 Jul 2024] T DSA-5727-1 firefox-esr security update
[05 Jul 2024] T DSA-5726-1 krb5 security update
[03 Jul 2024] T DSA-5725-1 znc security update
[01 Jul 2024] T DSA-5724-1 openssh security update
[27 Jun 2024] T DSA-5723-1 plasma-workspace security update
[26 Jun 2024] T DSA-5722-1 libvpx security update
[26 Jun 2024] T DSA-5721-1 ffmpeg security update
[25 Jun 2024] T DSA-5720-1 chromium security update
[25 Jun 2024] T DSA-5719-1 emacs security update
[25 Jun 2024] T DSA-5718-1 org-mode security update
[24 Jun 2024] T DSA-5715-2 composer regression update
[20 Jun 2024] T DSA-5717-1 php8.2 security update
[19 Jun 2024] T DSA-5716-1 chromium security update
[18 Jun 2024] T DSA-5715-1 composer security update
[18 Jun 2024] T DSA-5714-1 roundcube security update
[16 Jun 2024] T DSA-5713-1 libndp security update
[15 Jun 2024] T DSA-5712-1 ffmpeg security update
[15 Jun 2024] T DSA-5711-1 thunderbird security update
[14 Jun 2024] T DSA-5710-1 chromium security update
[12 Jun 2024] T DSA-5709-1 firefox-esr security update
[11 Jun 2024] T DSA-5708-1 cyrus-imapd security update
[11 Jun 2024] T DSA-5707-1 vlc security update
[05 Jun 2024] T DSA-5706-1 libarchive security update
[05 Jun 2024] T DSA-5705-1 tinyproxy security update
[05 Jun 2024] T DSA-5704-1 pillow security update
[02 Jun 2024] T DSA-5703-1 linux security update
[01 Jun 2024] T DSA-5702-1 gst-plugins-base1.0 security update
[31 May 2024] T DSA-5701-1 chromium security update
[29 May 2024] T DSA-5700-1 python-pymysql security update
[24 May 2024] T DSA-5699-1 redmine security update
[24 May 2024] T DSA-5698-1 ruby-rack security update
[24 May 2024] T DSA-5697-1 chromium security update
[22 May 2024] T DSA-5696-1 chromium security update
[22 May 2024] T DSA-5695-1 webkit2gtk security update
[17 May 2024] T DSA-5694-1 chromium security update
[17 May 2024] T DSA-5693-1 thunderbird security update
[15 May 2024] T DSA-5692-1 ghostscript security update
[15 May 2024] T DSA-5691-1 firefox-esr security update
[15 May 2024] T DSA-5690-1 libreoffice security update
[15 May 2024] T DSA-5689-1 chromium security update
[12 May 2024] T DSA-5688-1 atril security update
[10 May 2024] T DSA-5687-1 chromium security update
[09 May 2024] T DSA-5686-1 dav1d security update
[09 May 2024] T DSA-5682-2 glib2.0 regression update
[08 May 2024] T DSA-5685-1 wordpress security update
[09 May 2024] T DSA-5684-1 webkit2gtk security update
[08 May 2024] T DSA-5683-1 chromium security update
[07 May 2024] T DSA-5682-1 glib2.0 security update
[06 May 2024] T DSA-5681-1 linux security update
[06 May 2024] T DSA-5680-1 linux security update
[03 May 2024] T DSA-5679-1 less security update
[03 May 2024] T DSA-5678-1 glibc security update
[03 May 2024] T DSA-5677-1 ruby3.1 security update
[02 May 2024] T DSA-5676-1 chromium security update
[26 Apr 2024] T DSA-5675-1 chromium security update
[25 Apr 2024] T DSA-5674-1 pdns-recursor security update
[23 Apr 2024] T DSA-5673-1 glibc security update
[22 Apr 2024] T DSA-5672-1 openjdk-17 security update
[22 Apr 2024] T DSA-5671-1 openjdk-11 security update
[22 Apr 2024] T DSA-5670-1 thunderbird security update
[22 Apr 2024] T DSA-5669-1 guix security update
[20 Apr 2024] T DSA-5668-1 chromium security update
[19 Apr 2024] T DSA-5667-1 tomcat9 security update
[19 Apr 2024] T DSA-5666-1 flatpak security update
[17 Apr 2024] T DSA-5665-1 tomcat10 security update
[17 Apr 2024] T DSA-5664-1 jetty9 security update
[17 Apr 2024] T DSA-5663-1 firefox-esr security update
[16 Apr 2024] T DSA-5655-2 cockpit regression update
[16 Apr 2024] T DSA-5662-1 apache2 security update
[15 Apr 2024] T DSA-5661-1 php8.2 security update
[15 Apr 2024] T DSA-5660-1 php7.4 security update
[14 Apr 2024] T DSA-5659-1 trafficserver security update
[13 Apr 2024] T DSA-5658-1 linux security update
[12 Apr 2024] T DSA-5657-1 xorg-server security update
[11 Apr 2024] T DSA-5656-1 chromium security update
[04 Apr 2024] T DSA-5655-1 cockpit security update
[03 Apr 2024] T DSA-5654-1 chromium security update
[03 Apr 2024] T DSA-5653-1 gtkwave security update
[02 Apr 2024] T DSA-5652-1 py7zr security update
[31 Mar 2024] T DSA-5651-1 mediawiki security update
[31 Mar 2024] T DSA-5650-1 util-linux security update
[29 Mar 2024] T DSA-5649-1 xz-utils security update
[28 Mar 2024] T DSA-5648-1 chromium security update
[24 Mar 2024] T DSA-5647-1 samba security update
[24 Mar 2024] T DSA-5646-1 cacti security update
[23 Mar 2024] T DSA-5645-1 firefox-esr security update
[21 Mar 2024] T DSA-5644-1 thunderbird security update
[21 Mar 2024] T DSA-5643-1 firefox-esr security update
[20 Mar 2024] T DSA-5626-2 pdns-recursor regression update
[20 Mar 2024] T DSA-5642-1 php-dompdf-svg-lib security update
[19 Mar 2024] T DSA-5641-1 fontforge security update
[14 Mar 2024] T DSA-5640-1 openvswitch security update
[13 Mar 2024] T DSA-5639-1 chromium security update
[10 Mar 2024] T DSA-5638-1 libuv1 security update
[08 Mar 2024] T DSA-5637-1 squid security update
[06 Mar 2024] T DSA-5636-1 chromium security update
[04 Mar 2024] T DSA-5635-1 yard security update
[28 Feb 2024] T DSA-5634-1 chromium security update
[27 Feb 2024] T DSA-5633-1 knot-resolver security update
[26 Feb 2024] T DSA-5632-1 composer security update
[25 Feb 2024] T DSA-5631-1 iwd security update
[23 Feb 2024] T DSA-5630-1 thunderbird security update
[23 Feb 2024] T DSA-5629-1 chromium security update
[22 Feb 2024] T DSA-5628-1 imagemagick security update
[21 Feb 2024] T DSA-5627-1 firefox-esr security update
[18 Feb 2024] T DSA-5626-1 pdns-recursor security update
[16 Feb 2024] T DSA-5625-1 engrampa security update
[14 Feb 2024] T DSA-5624-1 edk2 security update
[14 Feb 2024] T DSA-5623-1 postgresql-15 security update
[14 Feb 2024] T DSA-5622-1 postgresql-13 security update
[14 Feb 2024] T DSA-5621-1 bind9 security update
[14 Feb 2024] T DSA-5620-1 unbound security update
[09 Feb 2024] T DSA-5619-1 libgit2 security update
[08 Feb 2024] T DSA-5618-1 webkit2gtk security update
[08 Feb 2024] T DSA-5617-1 chromium security update
[05 Feb 2024] T DSA-5616-1 ruby-sanitize security update
[04 Feb 2024] T DSA-5615-1 runc security update
[03 Feb 2024] T DSA-5614-1 zbar security update
[01 Feb 2024] T DSA-5613-1 openjdk-17 security update
[01 Feb 2024] T DSA-5612-1 chromium security update
[30 Jan 2024] T DSA-5611-1 glibc security update
[29 Jan 2024] T DSA-5610-1 redis security update
[28 Jan 2024] T DSA-5609-1 slurm-wlm security update
[27 Jan 2024] T DSA-5608-1 gst-plugins-bad1.0 security update
[24 Jan 2024] T DSA-5607-1 chromium security update
[24 Jan 2024] T DSA-5606-1 firefox-esr security update
[24 Jan 2024] T DSA-5605-1 thunderbird security update
[23 Jan 2024] T DSA-5604-1 openjdk-11 security update
[23 Jan 2024] T DSA-5603-1 xorg-server security update
[17 Jan 2024] T DSA-5602-1 chromium security update
[12 Jan 2024] T DSA-5601-1 php-phpseclib3 security update
[12 Jan 2024] T DSA-5600-1 php-phpseclib security update
[12 Jan 2024] T DSA-5599-1 phpseclib security update
[10 Jan 2024] T DSA-5598-1 chromium security update
[04 Jan 2024] T DSA-5597-1 exim4 security update
[04 Jan 2024] T DSA-5596-1 asterisk security update
[04 Jan 2024] T DSA-5595-1 chromium security update
[02 Jan 2024] T DSA-5594-1 linux security update
[01 Jan 2024] T DSA-5593-1 linux security update
[30 Dec 2023] T DSA-5592-1 libspreadsheet-parseexcel-perl security update
[28 Dec 2023] T DSA-5591-1 libssh security update
[28 Dec 2023] T DSA-5590-1 haproxy security update
[27 Dec 2023] T DSA-5589-1 nodejs security update
[24 Dec 2023] T DSA-5588-1 putty security update
[23 Dec 2023] T DSA-5587-1 curl security update
[22 Dec 2023] T DSA-5586-1 openssh security update
[21 Dec 2023] T DSA-5585-1 chromium security update
[21 Dec 2023] T DSA-5584-1 bluez security update
[21 Dec 2023] T DSA-5583-1 gst-plugins-bad1.0 security update
[21 Dec 2023] T DSA-5582-1 thunderbird security update
[20 Dec 2023] T DSA-5581-1 firefox-esr security update
[18 Dec 2023] T DSA-5580-1 webkit2gtk security update
[17 Dec 2023] T DSA-5579-1 freeimage security update
[17 Dec 2023] T DSA-5576-2 xorg-server security update
[15 Dec 2023] T DSA-5578-1 ghostscript security update
[13 Dec 2023] T DSA-5577-1 chromium security update
[13 Dec 2023] T DSA-5576-1 xorg-server security update
[11 Dec 2023] T DSA-5575-1 webkit2gtk security update
[11 Dec 2023] T DSA-5574-1 libreoffice security update
[09 Dec 2023] T DSA-5573-1 chromium security update
[04 Dec 2023] T DSA-5572-1 roundcube security update
[01 Dec 2023] T DSA-5571-1 rabbitmq-server security update
[01 Dec 2023] T DSA-5570-1 nghttp2 security update
[30 Nov 2023] T DSA-5569-1 chromium security update
[27 Nov 2023] T DSA-5568-1 fastdds security update
[27 Nov 2023] T DSA-5567-1 tiff security update
[26 Nov 2023] T DSA-5566-1 thunderbird security update
[25 Nov 2023] T DSA-5565-1 gst-plugins-bad1.0 security update
[24 Nov 2023] T DSA-5564-1 gimp security update
[23 Nov 2023] T DSA-5563-1 intel-microcode security update
[22 Nov 2023] T DSA-5562-1 tor security update
[22 Nov 2023] T DSA-5561-1 firefox-esr security update
[20 Nov 2023] T DSA-5560-1 strongswan security update
[19 Nov 2023] T DSA-5559-1 wireshark security update
[18 Nov 2023] T DSA-5558-1 netty security update
[17 Nov 2023] T DSA-5557-1 webkit2gtk security update
[15 Nov 2023] T DSA-5556-1 chromium security update
[15 Nov 2023] T DSA-5555-1 openvpn security update
[13 Nov 2023] T DSA-5554-1 postgresql-13 security update
[13 Nov 2023] T DSA-5553-1 postgresql-15 security update
[12 Nov 2023] T DSA-5552-1 ffmpeg security update
[09 Nov 2023] T DSA-5551-1 chromium security update
[08 Nov 2023] T DSA-5550-1 cacti security update
[05 Nov 2023] T DSA-5549-1 trafficserver security update
[05 Nov 2023] T DSA-5548-1 openjdk-17 security update
[04 Nov 2023] T DSA-5547-1 pmix security update
[02 Nov 2023] T DSA-5546-1 chromium security update
[02 Nov 2023] T DSA-5545-1 vlc security update
[31 Oct 2023] T DSA-5544-1 zookeeper security update
[31 Oct 2023] T DSA-5543-1 open-vm-tools security update
[30 Oct 2023] T DSA-5542-1 request-tracker4 security update
[30 Oct 2023] T DSA-5541-1 request-tracker5 security update
[30 Oct 2023] T DSA-5540-1 jetty9 security update
[30 Oct 2023] T DSA-5539-1 node-browserify-sign security update
[27 Oct 2023] T DSA-5538-1 thunderbird security update
[27 Oct 2023] T DSA-5537-1 openjdk-11 security update
[26 Oct 2023] T DSA-5536-1 chromium security update
[25 Oct 2023] T DSA-5535-1 firefox-esr security update
[25 Oct 2023] T DSA-5534-1 xorg-server security update
[24 Oct 2023] T DSA-5533-1 gst-plugins-bad1.0 security update
[24 Oct 2023] T DSA-5532-1 openssl security update
[23 Oct 2023] T DSA-5531-1 roundcube security update
[22 Oct 2023] T DSA-5530-1 ruby-rack security update
[20 Oct 2023] T DSA-5527-2 webkit2gtk regression update
[17 Oct 2023] T DSA-5529-1 slurm-wlm security update
[16 Oct 2023] T DSA-5522-3 tomcat9 regression update
[16 Oct 2023] T DSA-5528-1 node-babel7 security update
[12 Oct 2023] T DSA-5522-2 tomcat9 regression update
[12 Oct 2023] T DSA-5527-1 webkit2gtk security update
[12 Oct 2023] T DSA-5526-1 chromium security update
[11 Oct 2023] T DSA-5525-1 samba security update
[11 Oct 2023] T DSA-5524-1 libcue security update
[11 Oct 2023] T DSA-5523-1 curl security update
[10 Oct 2023] T DSA-5522-1 tomcat9 security update
[10 Oct 2023] T DSA-5521-1 tomcat10 security update
[10 Oct 2023] T DSA-5520-1 mediawiki security update
[06 Oct 2023] T DSA-5519-1 grub2 security update
[05 Oct 2023] T DSA-5518-1 libvpx security update
[05 Oct 2023] T DSA-5517-1 libx11 security update
[05 Oct 2023] T DSA-5516-1 libxpm security update
[04 Oct 2023] T DSA-5515-1 chromium security update
[03 Oct 2023] T DSA-5514-1 glibc security update
[03 Oct 2023] T DSA-5513-1 thunderbird security update
[02 Oct 2023] T DSA-5512-1 exim4 security update
[01 Oct 2023] T DSA-5511-1 mosquitto security update
[29 Sep 2023] T DSA-5510-1 libvpx security update
[29 Sep 2023] T DSA-5509-1 firefox-esr security update
[29 Sep 2023] T DSA-5508-1 chromium security update
[28 Sep 2023] T DSA-5507-1 jetty9 security update
[28 Sep 2023] T DSA-5506-1 firefox-esr security update
[25 Sep 2023] T DSA-5505-1 lldpd security update
[22 Sep 2023] T DSA-5504-1 bind9 security update
[20 Sep 2023] T DSA-5503-1 netatalk security update
[18 Sep 2023] T DSA-5502-1 xrdp security update
[18 Sep 2023] T DSA-5501-1 gnome-shell security update
[18 Sep 2023] T DSA-5500-1 flac security update
[18 Sep 2023] T DSA-5499-1 chromium security update
[13 Sep 2023] T DSA-5497-2 libwebp security update
[15 Sep 2023] T DSA-5498-1 thunderbird security update
[13 Sep 2023] T DSA-5497-1 libwebp security update
[13 Sep 2023] T DSA-5496-1 firefox-esr security update
[11 Sep 2023] T DSA-5495-1 frr security update
[10 Sep 2023] T DSA-5494-1 mutt security update
[10 Sep 2023] T DSA-5493-1 open-vm-tools security update
[09 Sep 2023] T DSA-5492-1 linux security update
[07 Sep 2023] T DSA-5491-1 chromium security update
[06 Sep 2023] T DSA-5490-1 aom security update
[04 Sep 2023] T DSA-5489-1 file security update
[03 Sep 2023] T DSA-5488-1 thunderbird security update
[31 Aug 2023] T DSA-5487-1 chromium security update
[30 Aug 2023] T DSA-5486-1 json-c security update
[30 Aug 2023] T DSA-5485-1 firefox-esr security update
[27 Aug 2023] T DSA-5484-1 librsvg security update
[25 Aug 2023] T DSA-5483-1 chromium security update
[24 Aug 2023] T DSA-5482-1 tryton-server security update
[20 Aug 2023] T DSA-5481-1 fastdds security update
Sources of Security Information
- Debian Security Tracker primary source for all security related information, search options
- JSON list contains CVE description, package name, Debian bug number, package versions with fix, no DSA included
- DSA list contains DSA including date, related CVE's numbers, package versions with fix
- DLA list contains DLA including date, related CVE's numbers, package versions with fix
- DSA announcements (Debian Security Advisories)
- DLA announcements (Debian Security Advisories of Debian LTS)
- RSS of the DSA or RSS long version including the text of the advisory
- RSS of the DLA or RSS long version including the text of the advisory
- Oval files
- Lookup a DSA (uppercase is important)
e.g. https://security-tracker.debian.org/tracker/DSA-3814 - Lookup a DLA ( -1 is important)
e.g. https://security-tracker.debian.org/tracker/DLA-867-1 - Lookup a CVE
e.g. https://security-tracker.debian.org/tracker/CVE-2017-6827