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
441 - 450 of 2353 results
13 December 2022
Several security issues were fixed in Rack.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2020-8184, CVE-2019-16782, CVE-2022-30122 + 1 other
12 December 2022
Several security issues were fixed in the Linux kernel.
- Ubuntu 18.04 LTS,
- 14.04 LTS
CVE ID
CVE-2022-3621, CVE-2022-42703, CVE-2022-2978 + 13 others
12 December 2022
Several security issues were fixed in QEMU.
- Ubuntu 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2021-3682, CVE-2022-3165, CVE-2022-0216 + 3 others
8 December 2022
Python could be made to denial of service if it received a specially crafted IDNA input.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
7 December 2022
Heimdal could be made to crash if it received specially crafted network traffic.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
6 December 2022
A distrusted certificate authority has been removed from ca-certificates.
- Ubuntu 16.04 LTS,
- 14.04 LTS
5 December 2022
Several security issues were fixed in libxml2.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
1 December 2022
Several security issues were fixed in the Linux kernel.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2022-3621, CVE-2022-3239, CVE-2022-3566 + 10 others
30 November 2022
pixman could be made to crash or run programs if it processed specially crafted input.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
29 November 2022
USN-5745-1 introduced a regression in shadow.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
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