NetSight
high7.8

CVE-2017-16997

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…

Impact

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.

Affected products

VendorProductAffected versions
GnuGlibc
Versions 2.19, 2.20, 2.21, 2.22, 2.23, 2.25
RedhatEnterprise Linux Desktop
Version 7.0
RedhatEnterprise Linux Server
Version 7.0
RedhatEnterprise Linux Workstation
Version 7.0

Weakness classification

References