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GHSA-557g-r22w-9wvx

Incorrect Permission Assignment for Critical Resource in Singularity

Source: GitHub Advisory Database (reviewed) High CVE-2019-11328

Packages

EcosystemPackageAffectedFixed in
Go github.com/sylabs/singularity >= 3.1.0, < 3.2.0 3.2.0

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.