CVE-2014-7817

Description

The wordexp function in GNU C Library (aka glibc) 2.21 does not enforce the WRDE_NOCMD flag, which allows context-dependent attackers to execute arbitrary commands, as demonstrated by input containing "$((`...`))".

Category

4.6
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.16%
Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory oracle.com Vendor Advisory sourceware.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://seclists.org/oss-sec/2014/q4/730 mailing list
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://linux.oracle.com/errata/ELSA-2015-0016.html
http://www.ubuntu.com/usn/USN-2432-1 vendor advisory
https://sourceware.org/ml/libc-alpha/2014-11/msg00519.html mailing list vendor advisory
http://rhn.redhat.com/errata/RHSA-2014-2023.html vendor advisory
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=a39208bd7fb76c1b01c127b4c61f9bfd915bfe7c
http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html vendor advisory
https://security.gentoo.org/glsa/201602-02 vendor advisory
http://www.securityfocus.com/bid/71216 vdb entry
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://secunia.com/advisories/62100 third party advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/98852 vdb entry
http://secunia.com/advisories/62146 third party advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=17625
http://linux.oracle.com/errata/ELSA-2015-0092.html vendor advisory
http://www.debian.org/security/2015/dsa-3142 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2014-7817?
CVE-2014-7817 has been scored as a medium severity vulnerability.
How to fix CVE-2014-7817?
To fix CVE-2014-7817, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-7817 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2014-7817 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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