The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade github.com/sylabs/singularity/internal/pkg
to version 3.6.3 or higher.
Affected versions of this package are vulnerable to Information Exposure via insecure permissions on temporary directories used in fakeroot or user namespace container execution.
When a Singularity action command (run
, shell
, exec
) is run with the fakeroot
or user namespace
option, Singularity
will extract a container image to a temporary sandbox directory. Due to insecure permissions on the temporary directory it is possible for any user with access to the system to read the contents of the image. Additionally, if the image contains a world-writable file or directory, it is possible for a user to inject arbitrary content into the running container.
The issue is mitigated if TMPDIR
is set to a location that is only accessible to the user, as any subdirectories directly under TMPDIR
cannot then be accessed by others. However, this is difficult to enforce so it is not recommended to rely on this as a mitigation.