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
141 - 150 of 266 results
4 September 2023
Several security issues were fixed in Thunderbird.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2023-4049, CVE-2023-4056, CVE-2023-4047 + 6 others
31 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 23.04
CVE ID
CVE-2023-3776, CVE-2023-3609, CVE-2023-4004 + 7 others
31 August 2023
GitPython could be made to run arbitrary commands on the host.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
31 August 2023
FRR could be made to close sessions if it received speacially crafted network traffic.
- Ubuntu 23.04 ,
- 22.04 LTS
CVE ID
30 August 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 23.04
CVE ID
CVE-2023-4015, CVE-2023-3777, CVE-2023-3611 + 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
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 23.04 ,
- 22.04 LTS
CVE ID
CVE-2023-3611, CVE-2023-3610, CVE-2023-3609 + 7 others
28 August 2023
Libqb could be made to crash or execute arbitrary code if it received a specially crafted message.
- Ubuntu 23.04 ,
- 22.04 LTS
CVE ID
24 August 2023
JOSE for C/C++ could be made to crash if it received specially crafted input.
- Ubuntu 23.04 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
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