CVE-2019-11328: Critical severity singularity vulnerability
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.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2019-11328.
What is the severity of CVE-2019-11328?
CVE-2019-11328 has a severity rating of 8.8 (Critical).
What is the affected software for CVE-2019-11328?
The affected software for CVE-2019-11328 includes Singularity versions 3.1.0 to 3.2.0-rc2, Sylabs Singularity, Fedora versions 28, 29, and 30, and openSUSE Leap 15.1.
How can a malicious user exploit CVE-2019-11328?
A malicious user with local/network access to the host system can exploit CVE-2019-11328 by manipulating files within `/run/singularity/instances/sing/<user>/<instance>` due to insecure permissions.
How can CVE-2019-11328 be fixed?
To fix CVE-2019-11328, it is recommended to update to Singularity version 3.2.0 or later, which includes a fix for the vulnerability.