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.
References
Link | Resource |
---|---|
https://sourceware.org/ml/libc-alpha/2017-12/msg00528.html | Issue Tracking Patch Third Party Advisory |
https://sourceware.org/bugzilla/show_bug.cgi?id=22625 | Issue Tracking Patch Third Party Advisory |
https://bugs.debian.org/884615 | Issue Tracking Mailing List Patch Third Party Advisory |
http://www.securityfocus.com/bid/102228 | Third Party Advisory VDB Entry |
https://access.redhat.com/errata/RHSA-2018:3092 | Third Party Advisory |
https://access.redhat.com/errata/RHBA-2019:0327 | Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Information
Published : 2017-12-17 17:29
Updated : 2020-10-15 06:28
NVD link : CVE-2017-16997
Mitre link : CVE-2017-16997
JSON object : View
CWE
CWE-426
Untrusted Search Path
Products Affected
redhat
- enterprise_linux_desktop
- enterprise_linux_workstation
- enterprise_linux_server
gnu
- glibc