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
2551 - 2560 of 10539 results
23 November 2023
Apache HTTP Server could be made to crash if it received a specially crafted request.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
23 November 2023
Several security issues were fixed in Firefox.
- Ubuntu 20.04 LTS
CVE ID
CVE-2023-6207, CVE-2023-6213, CVE-2023-6210 + 7 others
23 November 2023
Several security issues were fixed in poppler.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
CVE-2022-37051, CVE-2020-23804, CVE-2022-38349 + 2 others
22 November 2023
GlusterFS could be made to crash if it received a specially crafted request.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS
CVE ID
22 November 2023
Several security issues were fixed in Apache HTTP Server.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
22 November 2023
nghttp2 could be made to consume resources if it received specially crafted network traffic.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
22 November 2023
A system hardening measure could be bypassed.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS
CVE ID
21 November 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 23.10 ,
- 22.04 LTS
CVE ID
CVE-2023-5633, CVE-2023-4244, CVE-2023-5090 + 2 others
21 November 2023
Several security issues were fixed in the Linux kernel.
- Ubuntu 23.04 ,
- 22.04 LTS
CVE ID
CVE-2023-31085, CVE-2023-25775, CVE-2023-5345 + 2 others
21 November 2023
RabbitMQ could be made to denial of service if it received a specially crafted HTTP request.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
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