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
1951 - 1960 of 9815 results
11 October 2023
Several security issues were fixed in curl.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
11 October 2023
LibTIFF could be made to crash if it opened a specially crafted file.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
11 October 2023
USN-6404-1 caused some minor regressions in Firefox.
- Ubuntu 20.04 LTS
10 October 2023
.NET could be made to crash if it received specially crafted network traffic.
- Ubuntu 23.04 ,
- 22.04 LTS
CVE ID
10 October 2023
Several security issues were fixed in WebKitGTK.
- Ubuntu 23.04 ,
- 22.04 LTS
CVE ID
10 October 2023
Several security issues were fixed in Samba.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2023-4091, CVE-2023-42670, CVE-2023-42669 + 1 other
10 October 2023
Several security issues were fixed in libx11.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
10 October 2023
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-2023-3776, CVE-2023-3609, CVE-2023-21400 + 7 others
10 October 2023
kramdown could be made to execute arbitrary code if it received specially crafted input.
- Ubuntu 20.04 LTS
CVE ID
9 October 2023
CUE could be made to execute arbitrary code if it received a specially crafted file.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
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