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
191 - 200 of 2295 results
20 February 2024
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
20 February 2024
The system could be made to stop responding under certain conditions.
- Ubuntu 14.04 LTS
CVE ID
19 February 2024
Several security issues were fixed in LibTIFF.
- Ubuntu 23.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
15 February 2024
shadow could be made to expose sensitive information.
- Ubuntu 23.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
7 February 2024
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-2023-6817, CVE-2023-6040, CVE-2023-6932 + 2 others
1 February 2024
ImageMagick could be made to crash if it opened a specially crafted file.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
31 January 2024
Postfix could allow bypass of email authentication if it received specially crafted network traffic.
- Ubuntu 23.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
29 January 2024
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2023-20588, CVE-2023-6931, CVE-2023-1079 + 3 others
29 January 2024
Ceph could be made to bypass authorization checks if it received a specially crafted request.
- Ubuntu 23.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
25 January 2024
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2023-20588, CVE-2023-45863, CVE-2023-6606 + 2 others
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