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

27 - 36 of 1557 results

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-4435-2: ClamAV vulnerabilities

27 July 2020

Several security issues were fixed in ClamAV.

  • Ubuntu 14.04 LTS,
  • 12.04

CVE ID

CVE-2020-3327, CVE-2020-3350, CVE-2020-3481

USN-4428-1: Python vulnerabilities

22 July 2020

Several security issues were fixed in Python.

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

CVE ID

CVE-2019-20907, CVE-2019-9674, CVE-2019-17514 + 1 other

USN-4376-2: OpenSSL vulnerabilities

9 July 2020

Several security issues were fixed in OpenSSL.

  • Ubuntu 14.04 LTS,
  • 12.04

CVE ID

CVE-2019-1547, CVE-2019-1559, CVE-2019-1563

USN-4417-2: NSS vulnerability

6 July 2020

NSS could be made to expose sensitive information.

  • Ubuntu 14.04 LTS,
  • 12.04

CVE ID

CVE-2020-12402

USN-4409-1: Samba vulnerabilities

2 July 2020

Several security issues were fixed in Samba.

  • Ubuntu 20.04 LTS,
  • 19.10 ,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2020-10730, CVE-2020-10745, CVE-2020-10760

USN-4403-1: Mutt vulnerability and regression

24 June 2020

Mutt could be made to enable MITM attacks if it received a specially crafted request.

  • Ubuntu 20.04 LTS,
  • 19.10 ,
  • 18.04 LTS,
  • 16.04 LTS,
  • 12.04

CVE ID

CVE-2020-14954

USN-4402-1: curl vulnerabilities

24 June 2020

Several security issues were fixed in curl.

  • Ubuntu 20.04 LTS,
  • 19.10 ,
  • 18.04 LTS,
  • 16.04 LTS,
  • 14.04 LTS,
  • 12.04

CVE ID

CVE-2020-8177, CVE-2020-8169

USN-4401-1: Mutt vulnerabilities

22 June 2020

Several security issues were fixed in Mutt.

  • Ubuntu 20.04 LTS,
  • 19.10 ,
  • 18.04 LTS,
  • 16.04 LTS,
  • 12.04

CVE ID

CVE-2020-14093, CVE-2020-14154

USN-4397-2: NSS vulnerability

17 June 2020

NSS could be made to expose sensitive information over the network.

  • Ubuntu 14.04 LTS,
  • 12.04

CVE ID

CVE-2020-12399

  1. Previous page
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  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 ›