DCMTK

There is a use-after-free bug in the network module that can lead to NULL pointer dereference or a double free.

Thanks to Jinsheng Ba <bajinsheng@u.nus.edu> for the report and patches.

Closed by commit #a9697df.

This issue has been registered as the following CVEs:

• CVE-2021-41687 (https://www.cve.org/CVERecord?id=CVE-2021-41687)
• CVE-2021-41688 (https://www.cve.org/CVERecord?id=CVE-2021-41688)