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CVE-2017-16997

Published: 17 December 2017

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.

Priority

Low

CVSS 3 base score: 7.8

Status

Package Release Status
eglibc
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

precise Ignored
(end of ESM support, was needed)
trusty
Released (2.19-0ubuntu6.14)
upstream Needs triage

xenial Does not exist

zesty Does not exist

glibc
Launchpad, Ubuntu, Debian
artful
Released (2.26-0ubuntu2.1)
bionic Not vulnerable
(2.27-3ubuntu1)
cosmic Not vulnerable
(2.27-3ubuntu1)
disco Not vulnerable
(2.27-3ubuntu1)
eoan Not vulnerable
(2.27-3ubuntu1)
focal Not vulnerable
(2.27-3ubuntu1)
groovy Not vulnerable
(2.27-3ubuntu1)
hirsute Not vulnerable
(2.27-3ubuntu1)
precise Does not exist

trusty Does not exist

upstream
Released (2.27)
xenial
Released (2.23-0ubuntu10)
zesty Ignored
(reached end-of-life)