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Off-by-one Error Affecting bash package, versions <0:4.2.45-5.el7_0.4

high

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 97.37% (100th percentile)
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NVD
9.8 critical
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Red Hat
5.9 medium

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  • Snyk ID SNYK-CENTOS7-BASH-2036640
  • published 26 Jul 2021
  • disclosed 26 Sep 2014
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Introduced: 26 Sep 2014

CVE-2014-7187 Open this link in a new tab
CWE-193 Open this link in a new tab

How to fix?

Upgrade Centos:7 bash to version 0:4.2.45-5.el7_0.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bash package and not the bash package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

Off-by-one error in the read_token_word function in parse.y in GNU Bash through 4.3 bash43-026 allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) or possibly have unspecified other impact via deeply nested for loops, aka the "word_lineno" issue.

References