Provide references for CVE-2020-28840.
Where can I find more information about CVE-2020-28840?
References are available at: https://bugs.launchpad.net/ubuntu/+source/jhead/+bug/1900820, https://github.com/Matthias-Wandel/jhead/commit/4827ed31c226dc5ed93603bd649e0e387a1778da, https://github.com/Matthias-Wandel/jhead/issues/8, https://github.com/F-ZhaoYang/jhead/security/advisories/GHSA-xh27-xwgj-gqw2.