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LIN8-8378 : Security Advisory - glibc - CVE-2017-16997

Created: Dec 20, 2017    Updated: Dec 3, 2018
Resolved Date: Feb 2, 2018
Found In Version: 8.0
Fix Version: 8.0.0.25
Severity: Standard
Applicable for: Wind River Linux 8
Component/s: Userspace

Description

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.

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16997

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