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
201 - 210 of 266 results
28 June 2023
AccountsService could be made to crash or run programs if it received specially crafted messages.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
23 June 2023
USN 6161-1 introduced a regression in .NET that could incorrectly cause X.509 certificate imports to fail when they should succeed.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS
22 June 2023
CUPS could be made to crash or expose sensitive information over the network.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
22 June 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 23.04
CVE ID
CVE-2023-33203, CVE-2023-1859, CVE-2023-1855 + 17 others
21 June 2023
Several security issues were fixed in Bind.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
21 June 2023
Several security issues were fixed in Ruby.
- Ubuntu 23.04 ,
- 22.10
CVE ID
20 June 2023
Several security issues were fixed in Werkzeug.
- Ubuntu 23.04
CVE ID
20 June 2023
Jettison could be made to crash if it opened a specially crafted file.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
19 June 2023
Several security issues were fixed in QEMU.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2022-4172, CVE-2022-4144, CVE-2022-1050 + 1 other
16 June 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 23.04
CVE ID
CVE-2023-33203, CVE-2023-1859, CVE-2023-1855 + 17 others
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