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
221 - 230 of 2290 results
1 November 2023
Kerberos could be made to crash if it received specially crafted network traffic.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
31 October 2023
Several security issues were fixed in X.Org X Server, xwayland.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
30 October 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 14.04 LTS
CVE ID
CVE-2023-42755, CVE-2023-1380, CVE-2023-42752 + 4 others
26 October 2023
Several security issues were fixed in Exim.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
25 October 2023
Several security issues were fixed in Vim.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2023-4752, CVE-2023-5535, CVE-2023-4733 + 9 others
24 October 2023
ncurses could be made to crash if it opened a specially crafted file.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
23 October 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 14.04 LTS
CVE ID
CVE-2023-42755, CVE-2023-4623, CVE-2023-4881 + 8 others
23 October 2023
Several security issues were fixed in libXpm.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2023-43789, CVE-2023-43787, CVE-2023-43786 + 1 other
20 October 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 14.04 LTS
CVE ID
CVE-2023-4921, CVE-2023-4622, CVE-2023-42755 + 9 others
19 October 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2023-31083, CVE-2023-42753, CVE-2023-4921 + 8 others
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