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-2565-1: Linux kernel vulnerabilities

9 April 2015

Several security issues were fixed in the kernel.

  • Ubuntu 14.10

CVE ID

CVE-2015-1593, CVE-2015-2041, CVE-2015-2042 + 1 other

USN-2559-1: Libtasn1 vulnerability

8 April 2015

Libtasn1 could be made to crash or run programs if it processed specially crafted data.

  • Ubuntu 14.10 ,
  • 14.04 LTS,
  • 12.04 ,
  • 10.04

CVE ID

CVE-2015-2806

USN-2558-1: Mailman vulnerability

7 April 2015

Mailman could be made to run programs if it processed a specially crafted list name.

  • Ubuntu 14.10 ,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2015-2775

USN-2556-1: Oxide vulnerabilities

7 April 2015

Several security issues were fixed in Oxide.

  • Ubuntu 14.10 ,
  • 14.04 LTS

CVE ID

CVE-2015-1233, CVE-2015-1234, CVE-2015-1317

USN-2557-1: Firefox vulnerability

7 April 2015

Firefox could be made to bypass SSL certificate verification.

  • Ubuntu 14.10 ,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2015-0799

USN-2552-1: Thunderbird vulnerabilities

2 April 2015

Several security issues were fixed in Thunderbird.

  • Ubuntu 14.10 ,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2015-0801, CVE-2015-0807, CVE-2015-0813 + 2 others

USN-2553-2: LibTIFF regression

1 April 2015

USN-2553-1 introduced a regression in LibTIFF.

  • Ubuntu 14.10 ,
  • 14.04 LTS,
  • 12.04 ,
  • 10.04

USN-2550-1: Firefox vulnerabilities

1 April 2015

Firefox could be made to crash or run programs as your login if it opened a malicious website.

  • Ubuntu 14.10 ,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2015-0801, CVE-2015-0802, CVE-2015-0803 + 11 others

USN-2555-1: Libgcrypt vulnerabilities

1 April 2015

Several security issues were fixed in Libgcrypt.

  • Ubuntu 14.10 ,
  • 14.04 LTS,
  • 12.04 ,
  • 10.04

CVE ID

CVE-2014-3591, CVE-2015-0837

USN-2554-1: GnuPG vulnerabilities

1 April 2015

Several security issues were fixed in GnuPG.

  • Ubuntu 14.10 ,
  • 14.04 LTS,
  • 12.04 ,
  • 10.04

CVE ID

CVE-2014-3591, CVE-2014-5270, CVE-2015-0837 + 2 others

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