Untrusted Search Path Affecting glibc-common package, versions <0:2.17-260.175.amzn1
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Test your applications- Snyk ID SNYK-AMZN201803-GLIBCCOMMON-1715732
- published 27 Sep 2021
- disclosed 18 Dec 2017
Introduced: 18 Dec 2017
CVE-2017-16997 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2018.03
glibc-common
to version 0:2.17-260.175.amzn1 or higher.
This issue was patched in ALAS-2018-1109
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc-common
package and not the glibc-common
package as distributed by Amazon-Linux
.
See How to fix?
for Amazon-Linux:2018.03
relevant fixed versions and status.
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
- http://www.securityfocus.com/bid/102228
- https://bugs.debian.org/884615
- https://sourceware.org/bugzilla/show_bug.cgi?id=22625
- https://sourceware.org/ml/libc-alpha/2017-12/msg00528.html
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16997
- https://access.redhat.com/errata/RHBA-2019:0327
- https://access.redhat.com/errata/RHSA-2018:3092