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.
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USN ID, name, description or CVE ID contains
231 - 240 of 274 results
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
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
21 November 2023
Several security issues were fixed in Squid.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2023-46724, CVE-2023-46848, CVE-2023-46846 + 2 others
21 November 2023
GnuTLS could be made to expose sensitive information over the network.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
21 November 2023
Several security issues were fixed in FRR.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS
CVE ID
CVE-2023-38407, CVE-2023-38406, CVE-2023-47235 + 1 other
21 November 2023
A security improvement was added to hibagent.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
20 November 2023
Several security issues were fixed in WebKitGTK.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS
CVE ID
20 November 2023
strongSwan could be made to crash or run programs if it received specially crafted network traffic.
- Ubuntu 23.10 ,
- 23.04 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
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