edk2 is vulnerable to denial of service (DoS). The attack can be triggered when an attacker provide a corrupted BMP file causing a buffer overflow.
lists.opensuse.org/opensuse-security-announce/2019-04/msg00030.html
lists.opensuse.org/opensuse-security-announce/2019-04/msg00048.html
access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index
access.redhat.com/errata/RHSA-2019:2125
access.redhat.com/errata/RHSA-2019:3338
access.redhat.com/security/updates/classification/#moderate
edk2-docs.gitbooks.io/security-advisory/content/stack-overflow-on-corrupted-bmp.html
lists.fedoraproject.org/archives/list/[email protected]/message/4ABTDKZK2G5XP6JCO3HXMPOA2NRTIYDZ/
support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03912en_us
usn.ubuntu.com/4349-1/