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
4451 - 4460 of 10611 results
8 September 2021
mod-auth-mellon could be made to redirect to arbitrary sites.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
8 September 2021
Several security issues were fixed in sssd.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-3621, CVE-2018-10852, CVE-2019-3811 + 1 other
8 September 2021
PySAML2 could be made to accept invalid SAML documents.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
8 September 2021
Open vSwitch could be made to crash or run programs if it received specially crafted network traffic.
- Ubuntu 21.04 ,
- 20.04 LTS
CVE ID
8 September 2021
GNU cpio could be made to crash or run programs if it opened a specially crafted file.
- Ubuntu 21.04 ,
- 20.04 LTS,
- 18.04 LTS
CVE ID
8 September 2021
HAProxy could be made to expose sensitive information over the network.
- Ubuntu 21.04 ,
- 20.04 LTS
CVE ID
8 September 2021
The system could be made to crash or run programs as an administrator.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
3 September 2021
uWSGI could be made to crash if it received specially crafted input.
- Ubuntu 16.04 LTS,
- 14.04 LTS
CVE ID
3 September 2021
Several security issues were fixed in Scilab.
- Ubuntu 16.04 LTS
CVE ID
CVE-2021-30485, CVE-2021-31347, CVE-2021-31229 + 1 other
1 September 2021
USN-5051-2 introduced a regression in OpenSSL.
- Ubuntu 14.04 LTS
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