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.

Subscribe for updates  

Mailing list Atom RSS

Search USNs

USN ID, name, description or CVE ID contains

Filter by Ubuntu release

751 - 760 of 2300 results

USN-4463-1: Linux kernel vulnerabilities

18 August 2020

Several security issues were fixed in the Linux kernel.

  • Ubuntu 16.04 LTS,
  • 14.04 LTS

CVE ID

CVE-2020-12771, CVE-2020-15393

USN-4460-1: Oniguruma vulnerabilities

17 August 2020

Several security issues were fixed in Oniguruma.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2019-16163, CVE-2019-19012, CVE-2019-19204 + 1 other

USN-4457-2: Software Properties vulnerability

17 August 2020

Software Properties could be made to manipulate the display.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2020-15709

USN-4456-2: Dovecot vulnerabilities

17 August 2020

Several security issues were fixed in Dovecot.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2020-12100, CVE-2020-12673, CVE-2020-12674

LSN-0070-1: Kernel Live Patch Security Notice

17 August 2020

Several security issues were fixed in the kernel.

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

CVE ID

CVE-2020-11935

USN-4454-2: Samba vulnerability

10 August 2020

Samba could be made to crash if it received specially crafted network traffic.

  • Ubuntu 14.04 LTS,
  • 12.04

CVE ID

CVE-2020-14303

USN-4455-1: NSS vulnerabilities

10 August 2020

Several security issues were fixed in NSS.

  • Ubuntu 20.04 LTS,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2020-12400, CVE-2020-12401, CVE-2020-6829

USN-4451-2: ppp vulnerability

6 August 2020

ppp could be made to load arbitrary kernel modules and possibly run programs.

  • Ubuntu 14.04 LTS,
  • 12.04

CVE ID

CVE-2020-15704

USN-4432-2: GRUB2 regression

4 August 2020

USN-4432-1 introduced a regression in the GRUB2 bootloader.

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

USN-4298-2: SQLite vulnerabilities

3 August 2020

Several security issues were fixed in SQLite.

  • Ubuntu 14.04 LTS

CVE ID

CVE-2019-13734, CVE-2019-13750, CVE-2019-13751 + 3 others

  1. Previous page
  2. 74
  3. 75
  4. 76
  5. 77
  6. 78
  7. Next page

Resources

Join the discussion

Further reading

Canonical is offering
Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›