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
AT_SECURE) program, which allows local users to gain privileges via a
Trojan horse library in the current working directory, related to the
fillin_rpath and decompose_rpath functions. This is associated with
misinterpretion of an empty RPATH/RUNPATH token as the "./" directory.
NOTE: this configuration of RPATH/RUNPATH for a privileged program is
apparently very uncommon; most likely, no such program is shipped with any
common Linux distribution.
Ubuntu 12.04 ESM (Precise Pangolin):needed
Trusty/esm:released (2.19-0ubuntu6.14)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Ubuntu 19.10 (Eoan):DNE
More Information

Updated: 2019-04-26 14:21:00 UTC (commit 30899e40836d26e1bb5f0b072d31fd87b6cf3bd4)