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
Ubuntu 14.04 LTS (Trusty Tahr):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
More Information

Updated: 2019-01-14 21:24:55 UTC (commit 51f9b73af244ba86b9321e46e526586c25a8e060)