libfreerdp/codec/planar.c in FreeRDP version > 1.0 through 2.0.0-rc4 has an Out-of-bounds Write.
lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html
github.com/FreeRDP/FreeRDP/commits/master
github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5cwc-6wc9-255w
lists.debian.org/debian-lts-announce/2020/08/msg00054.html
pub.freerdp.com/cve/CVE-2020-11521/pocAnalysis_6.pdf
usn.ubuntu.com/4379-1/
usn.ubuntu.com/4382-1/