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
1 - 10 of 265 results
19 July 2023
Several security issues were fixed in Samba.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2023-3347, CVE-2023-34967, CVE-2023-34968 + 2 others
19 July 2023
Several security issues were fixed in curl.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
13 July 2023
Several security issues were fixed in SpiderMonkey.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS
CVE ID
13 July 2023
Several security issues were fixed in SciPy.
- Ubuntu 22.10 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
13 July 2023
Knot Resolver could be made to crash if it received specially crafted network traffic.
- Ubuntu 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
12 July 2023
Several security issues were fixed in Ruby.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
11 July 2023
The maximum failed attempts security feature for .NET could be bypassed.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS
CVE ID
11 July 2023
Several security issues were fixed in Thunderbird.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
CVE-2023-37211, CVE-2023-37201, CVE-2023-37207 + 4 others
10 July 2023
Ghostscript could be made to run programs if it opened a specially crafted file.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS
CVE ID
7 July 2023
Doorkeeper could be made to expose sensitive information over the network.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
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