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
951 - 960 of 2759 results
17 May 2023
EventSource could leak sensitive information if it opened a specially crafted input file.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
16 May 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2023-1513, CVE-2023-1118, CVE-2023-32269 + 2 others
16 May 2023
libwebp could be made to crash or run programs as your login if it opened a specially crafted file.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
16 May 2023
Several security issues were fixed in OpenJDK.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2023-21937, CVE-2023-21938, CVE-2023-21968 + 4 others
16 May 2023
Several security issues were fixed in Synapse.
- Ubuntu 18.04 LTS
CVE ID
CVE-2019-5885, CVE-2018-12291, CVE-2018-16515 + 4 others
16 May 2023
USN-6074-1 caused some minor regressions in Firefox.
- Ubuntu 20.04 LTS,
- 18.04 LTS
15 May 2023
Several security issues were fixed in Thunderbird.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2023-32206, CVE-2023-32215, CVE-2023-32211 + 4 others
15 May 2023
Several security issues were fixed in Firefox.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2023-32208, CVE-2023-32206, CVE-2023-32215 + 8 others
10 May 2023
The system could be made to run programs as an administrator.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
10 May 2023
Open vSwitch could be made to stop forwarding packets if it received specially crafted network traffic.
- Ubuntu 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
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