Source: ganeti
Version: 2.15.2-7+deb9u2
Severity: important
Tags: patch

Following up on #907216, the patch to use SHA256 for certificate signing 
should be backported to Stretch to allow users to switch to SHA256 
certificates before upgrading to Buster. Certificate renewal has to take 
place in a co-ordinated fashion across a ganeti cluster (using 
`gnt-cluster upgrade`) and cannot be done for each node separately in 
the package's maintainer scripts, which means that we cannot rely on 
APT's sequencing between ganeti and libssl1.1 to resolve the situation 
on dist-upgrade.

Backporting the patch will allow users to prepare their clusters before 
upgrading to Buster and avoid the breakage caused by the installation of 
OpenSSL 1.1.1.

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