CVE-2020-8945

A use-after-free vulnerability was found in the Go GPGME wrapper library, github.com/proglottis/gpgme. An attacker could use this flaw to crash or cause potential code execution in Go applications that use this library, under certain conditions, during GPG signature verification.

OpenShift 3.11 consumes updates for podman from the RHEL-7 extras channel, hence why it has been marked as wontfix in this instance.

After extensive testing of the mentioned vulnerability Red Hat has chosen a severity of Moderate instead of High, because the deallocation of GPGME objects while other parts of code are still using it, the vulnerability can only result in a crash and cannot be used to execute code in any feasible manner, moreover the vulnerability only results in crash if finalizers are called to clean up variables while objects are still being used by the underlying C code. Given the inherent attack complexity being high and the exploitability of the vulnerability limited to a crash, Moderate severity seems adequate.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.