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
311 - 320 of 2770 results
1 August 2024
Several security issues were fixed in Tomcat.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2020-9484, CVE-2021-41079, CVE-2022-29885 + 2 others
1 August 2024
Gross could be made to crash or to allow arbitary code execution.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
31 July 2024
Exim could be made to bypass a MIME filename extension-blocking protection mechanism if it received specially crafted input.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
31 July 2024
phpCAS was vulnerable to an authentication bypass.
- Ubuntu 16.04 LTS
CVE ID
31 July 2024
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2021-47194, CVE-2023-52444, CVE-2024-26934 + 28 others
29 July 2024
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2024-26882, CVE-2024-24858, CVE-2024-24859 + 27 others
29 July 2024
Several security issues were fixed in EDK II.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2018-3613, CVE-2018-12183, CVE-2019-0160 + 2 others
23 July 2024
Several security issues were fixed in Apache ActiveMQ.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2021-26117, CVE-2022-41678, CVE-2023-46604 + 3 others
23 July 2024
HAProxy could be made to expose sensitive information.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
23 July 2024
Squid could be made to crash if it processed specially crafted characters.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
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