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
1091 - 1100 of 2478 results
31 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2023-3776, CVE-2023-21400, CVE-2023-3609 + 8 others
31 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2023-3611, CVE-2023-20593, CVE-2022-40982 + 2 others
30 August 2023
Several security issues were fixed in elfutils.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2021-33294, CVE-2020-21047, CVE-2018-18521 + 7 others
30 August 2023
USN-6263-1 introduced a regression in OpenJDK 11 and OpenJDK 17.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
30 August 2023
Several security issues were fixed in Firefox.
- Ubuntu 20.04 LTS
CVE ID
CVE-2023-4575, CVE-2023-4574, CVE-2023-4578 + 8 others
30 August 2023
AMD processors may allow an attacker to expose sensitive information due to a speculative execution vulnerability.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
29 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2022-40982, CVE-2023-3609, CVE-2023-3776 + 2 others
29 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2023-20593, CVE-2023-4015, CVE-2023-3995 + 8 others
29 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 20.04 LTS
CVE ID
CVE-2022-0168, CVE-2022-1184, CVE-2023-3141 + 13 others
29 August 2023
Several security issues were fixed in FAAD2.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2021-32276, CVE-2021-32278, CVE-2023-38857 + 5 others
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