CVE-2014-7817
4.6 · MEDIUMThe 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 contain…
Overview
CVE-2014-7817 is a medium-severity vulnerability affecting canonical ubuntu_linux. It was published on November 24, 2014 and has a CVSS 2.0 base score of 4.6 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 4.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical 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 "$((`...`))".
Remediation
Check the references section for vendor advisories and patches from canonical. Update ubuntu_linux to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected products
| Vendor | Product | Versions | Status |
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References
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Frequently asked questions
What is CVE-2014-7817?
CVE-2014-7817 is a medium-severity vulnerability affecting canonical ubuntu_linux. It was published on November 24, 2014 and has a CVSS 2.0 base score of 4.6 (MEDIUM).
How severe is CVE-2014-7817?
This vulnerability has a CVSS 2.0 base score of 4.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2014-7817?
Check the references section for vendor advisories and patches from canonical. Update ubuntu_linux to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2014-7817?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-7817 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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