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Off-by-one error in the read_token_word function in parse...

High severity Unreviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Apr 12, 2025

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

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

Published by the National Vulnerability Database Sep 28, 2014
Published to the GitHub Advisory Database May 14, 2022
Last updated Apr 12, 2025

Severity

High

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(100th percentile)

Weaknesses

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Learn more on MITRE.

CVE ID

CVE-2014-7187

GHSA ID

GHSA-8m22-gm6f-5487

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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