Ubuntu Security Notices

Developers issue an Ubuntu Security Notice when a security issue is fixed in an official Ubuntu package. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section.

To report a security vulnerability in an Ubuntu package, please contact the Security Team.

The Security Team also produces OVAL files for each Ubuntu release. These are an industry-standard machine-readable format dataset that contain details of all known security vulnerabilities and fixes relevant to the Ubuntu release, and can be used to determine whether a particular patch is appropriate. OVAL files can also be used to audit a system to check whether the latest security fixes have been applied.

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USN-2915-3: Django regression

7 March 2016

USN-2915-1 introduced a regression in Django.

  • Ubuntu 15.10 ,
  • 14.04 LTS

USN-2915-2: Django regression

7 March 2016

USN-2915-1 introduced a regression in Django.

  • Ubuntu 15.10 ,
  • 14.04 LTS

USN-2921-1: Squid vulnerabilities

7 March 2016

Several security issues were fixed in Squid.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2014-6270, CVE-2016-2571

USN-2919-1: JasPer vulnerabilities

3 March 2016

Several security issues were fixed in JasPer.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2016-1577, CVE-2016-2116

USN-2916-1: Perl vulnerabilities

2 March 2016

Several security issues were fixed in Perl.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2013-7422, CVE-2014-4330, CVE-2016-2381

USN-2915-1: Django vulnerabilities

1 March 2016

Several security issues were fixed in Django.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2016-2512, CVE-2016-2513

USN-2914-1: OpenSSL vulnerabilities

1 March 2016

Several security issues were fixed in OpenSSL.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2016-0702, CVE-2016-0705, CVE-2016-0797 + 2 others

USN-2908-4: Linux kernel regression

26 February 2016

USN-2908-1 introduced a regression in the Linux kernel.

  • Ubuntu 15.10

USN-2913-2: glib-networking update

24 February 2016

Updated glib-networking packages are required for the USN-2913-1 update.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04

USN-2913-1: ca-certificates update

24 February 2016

ca-certificates was updated to the 20160104 package.

  • Ubuntu 15.10 ,
  • 14.04 LTS,
  • 12.04
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