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
3921 - 3930 of 10602 results
23 June 2022
USN-5487-1 introduced a regression in Apache HTTP Server.
- Ubuntu 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2022-26377, CVE-2022-31813, CVE-2022-28614 + 4 others
23 June 2022
USN-5487-1 introduced a regression in Apache HTTP Server.
- Ubuntu 14.04 LTS
22 June 2022
Squid could be made to crash if it received specially crafted network traffic.
- Ubuntu 22.04 LTS,
- 21.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
21 June 2022
Protocol Buffers could be made to crash if it received specially crafted input.
- Ubuntu 16.04 LTS
CVE ID
21 June 2022
Several security issues were fixed in Smarty.
- Ubuntu 20.04 LTS
CVE ID
CVE-2021-26120, CVE-2021-29454, CVE-2021-21408 + 1 other
21 June 2022
Several security issues were fixed in QEMU.
- Ubuntu 22.04 LTS,
- 21.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2022-26354, CVE-2022-0358, CVE-2022-26353 + 4 others
21 June 2022
OpenSSL could be made to crash or run programs when the c_rehash script is used.
- Ubuntu 22.04 LTS,
- 21.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
21 June 2022
Several security issues were fixed in Apache HTTP Server.
- Ubuntu 22.04 LTS,
- 21.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2022-29404, CVE-2022-26377, CVE-2022-31813 + 4 others
20 June 2022
Several security issues were fixed in Intel Microcode.
- Ubuntu 22.04 LTS,
- 21.10 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-0127, CVE-2021-33117, CVE-2021-33120 + 6 others
17 June 2022
Several security issues were addressed in the Linux kernel.
- Ubuntu 22.04 LTS,
- 21.10 ,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
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