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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17 - 26 of 229 results

USN-4993-1: Dovecot vulnerabilities

21 June 2021

Several security issues were fixed in Dovecot.

  • Ubuntu 21.04 ,
  • 20.10 ,
  • 20.04 LTS

CVE ID

CVE-2021-29157, CVE-2021-33515

USN-4992-1: GRUB 2 vulnerabilities

18 June 2021

Several security issues were fixed in GRUB 2.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2021-20225, CVE-2020-14372, CVE-2020-25632 + 3 others

USN-4991-1: libxml2 vulnerabilities

17 June 2021

Several security issues were fixed in libxml2.

  • Ubuntu 21.04 ,
  • 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2021-3516, CVE-2017-8872, CVE-2020-24977 + 5 others

USN-4990-1: Nettle vulnerabilities

17 June 2021

Several security issues were fixed in Nettle.

  • Ubuntu 21.04 ,
  • 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2018-16869, CVE-2021-3580

USN-4989-1: BlueZ vulnerabilities

16 June 2021

Several security issues were fixed in BlueZ.

  • Ubuntu 21.04 ,
  • 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2021-3588, CVE-2020-26558, CVE-2020-27153

USN-4988-1: ImageMagick vulnerabilities

15 June 2021

Several security issues were fixed in ImageMagick.

  • Ubuntu 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2020-27757, CVE-2020-27771, CVE-2017-14528 + 31 others

USN-4987-1: ExifTool vulnerability

10 June 2021

libimage-exiftool-perl could be made to crash if it opened a specially crafted file.

  • Ubuntu 21.04 ,
  • 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2021-22204

USN-4985-1: Intel Microcode vulnerabilities

9 June 2021

Several security issues were fixed in Intel Microcode.

  • Ubuntu 21.04 ,
  • 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2020-24512, CVE-2020-24513, CVE-2020-24511 + 1 other

USN-4984-1: Linux kernel vulnerabilities

8 June 2021

Several security issues were fixed in the Linux kernel.

  • Ubuntu 20.10 ,
  • 20.04 LTS

CVE ID

CVE-2021-28972, CVE-2021-29647, CVE-2021-28971 + 10 others

USN-4937-2: GNOME Autoar regression

7 June 2021

USN-4937-1 introduced a regression in GNOME Autoar.

  • Ubuntu 21.04 ,
  • 20.10 ,
  • 20.04 LTS,
  • 18.04 LTS
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