CVE-2014-7817

Description

It was found that the wordexp() function would perform command substitution even when the WRDE_NOCMD flag was specified. An attacker able to provide specially crafted input to an application using the wordexp() function, and not sanitizing the input correctly, could potentially use this flaw to execute arbitrary commands with the credentials of the user running that application.

Statement

This issue affects the version of glibc package as shipped with Red Hat Enterprise Linux 5, 6 and 7. Red Hat Product Security has rated this issue as having Moderate security impact.

Red Hat Enterprise Linux 5 is now in Extended Life Cycle phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v2 Score Breakdown

Red HatNVDcve.org
Base Score3.64.6N/A
Attack VectorLocalLocalN/A
Access ComplexityLowLowN/A
AuthenticationNoneNoneN/A
Confidentiality ImpactPartialPartialN/A
Integrity ImpactPartialPartialN/A
Availability ImpactNonePartialN/A

Vector

Red Hat: AV:L/AC:L/Au:N/C:P/I:P/A:N

NVD: AV:L/AC:L/Au:N/C:P/I:P/A:P

Understanding the Weakness (CWE)

CWE-440

Other

Technical Impact: Quality Degradation; Varies by Context

Acknowledgements

This issue was discovered by Tim Waugh (Red Hat Developer Experience Team).

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