Report a Livepatch Server vulnerability
To report a security issue, file a Private/Embargoed Security Bug on Launchpad with a description of the issue, the steps you took to reproduce the issue, affected versions, and, if known, mitigations for the issue. See this for more information on how to file a private security bug on Launchpad.
The Livepatch team will be notified of the issue and will work with you to determine whether the issue qualifies as a security issue. We will then handle figuring out a fix, getting a CVE assigned and coordinating the release of the fix.
The Ubuntu Security disclosure and embargo policy contains more information about what you can expect when you contact us, and what we expect from you.