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.
Search USNs
USN ID, name, description or CVE ID contains
741 - 750 of 2765 results
28 November 2023
AFFLIB could be made to crash if it opened a specially crafted file.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
28 November 2023
USN-6508-1 caused some minor regressions in poppler.
- Ubuntu 18.04 LTS
28 November 2023
Several security issues were fixed in the kernel.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2023-42752, CVE-2023-3777, CVE-2023-3609 + 13 others
26 November 2023
Open vSwitch could be made to expose sensitive information over the network.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
23 November 2023
Several security issues were fixed in Python.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
23 November 2023
Several security issues were fixed in LibTIFF.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
23 November 2023
Apache HTTP Server could be made to crash if it received a specially crafted request.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
23 November 2023
Several security issues were fixed in poppler.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2022-37051, CVE-2020-23804, CVE-2022-38349 + 2 others
21 November 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
21 November 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2023-5717, CVE-2023-39194, CVE-2023-39193 + 6 others
Resources
Join the discussion
Get up to 15 years of security
maintenance for your new or established systems
Get up to 15 years of security maintenance for your entire Ubuntu Archive. Keep your systems stable with security backporting and avoid forced upgrades.