An issue was discovered in Singularity 3.1.0 to 3.2.0-rc2, a malicious user with local/network access to the host system (e.g. ssh) could exploit this vulnerability due to insecure permissions allowing a user to edit files within `/run/singularity/instances/sing/<user>/<instance>`. The manipulation of those files can change the behavior of the starter-suid program when instances are joined resulting in potential privilege escalation on the host. Reference: https://github.com/sylabs/singularity/releases/tag/v3.2.0
Created singularity tracking bugs for this issue: Affects: fedora-all [bug 1710316]
Created singularity tracking bugs for this issue: Affects: epel-all [bug 1710317]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.