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
2071 - 2080 of 9819 results
4 September 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2022-27672, CVE-2023-2124, CVE-2022-0168 + 13 others
4 September 2023
docker-registry could be made to crash if it received specially crafted input.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
4 September 2023
Several security issues were fixed in BusyBox.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
4 September 2023
Several security issues were fixed in atftp.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
4 September 2023
Several security issues were fixed in Thunderbird.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2023-4049, CVE-2023-4056, CVE-2023-4047 + 6 others
31 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2023-3777, CVE-2023-33288, CVE-2023-35824 + 32 others
31 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2023-2124, CVE-2023-3111, CVE-2023-33203 + 18 others
31 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2023-4015, CVE-2023-3777, CVE-2023-3611 + 8 others
31 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS
CVE ID
CVE-2023-3609, CVE-2023-3611, CVE-2023-20593 + 2 others
31 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 23.04
CVE ID
CVE-2023-3776, CVE-2023-3609, CVE-2023-4004 + 7 others
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