In EDK II, a vulnerability exists in BaseUefiDecompressLib.c, TianoCompress.c, and UEFI specification via a heap-based buffer overflow in the MakeTable() function. An authenticated attacker could exploit this via a crafted file to escalate privileges.
Created edk2 tracking bugs for this issue:
Affects: epel-all [bug 1641452]
Affects: fedora-all [bug 1641451]
This issue has been addressed in the following products:
Red Hat Enterprise Linux 7
Via RHSA-2019:2125 https://access.redhat.com/errata/RHSA-2019:2125
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):