glibc: Incorrect handling of RPATH in elf/dl-load.c can be used to execute code loaded from arbitrary libraries

elf/dl-load.c in the GNU C Library aka glibc or libc6 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged setuid or ATSECURE program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillinrpath...