CVE-2020-24979: Vulnerability in Bison Package

bison Updated 02 Oct 2025

Summary

04/09/2020

Disclosed on

N/A

Severity

Yes i

Fix available

Unrated

Severity

Not published

CVSS Score

CVE-2020-24979: Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. Affects bison versions < 3.7.2-r0. Fixed in 3.7.2-r0. How to fix ↓

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Background

The Bison package is a general-purpose parser generator that converts a grammar description for an LALR(1) context-free grammar into a C program to parse that grammar. It is commonly used in software development to generate parsers for programming languages, data formats, and other structured input. The package is widely used in the Alpine Linux distribution, specifically in versions 3.13 to 3.18.

Vulnerability Detail

CVE-2020-24979 is a vulnerability in the Bison package that was initially reported as a security issue but later determined to be a non-security-related concern. The vulnerability has been withdrawn by the Common Vulnerabilities and Exposures (CVE) Numbering Authority (CNA). Further investigation revealed that it does not pose a security risk. Therefore, it is not necessary to take any specific actions to address this vulnerability.

How To Fix

Minimum fixed version

3.7.2-r0

This is the first release that contains the fix.

sudo apk add --upgrade bison

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Workaround

No workaround is necessary for this vulnerability.

Conclusion

CVE-2020-24979 is a vulnerability that was initially reported as a security issue but later determined to be a non-security concern. It does not pose any security risk, and no specific actions are required to address this vulnerability. Keeping the Bison package updated to the latest version is recommended for optimal performance and stability. For further support on vulnerability remediation, please contact DevNack.com.

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FAQ

What is the impact of CVE-2020-24979?

CVE-2020-24979 does not have any security impact as it has been determined to be a non-security issue.

Is there a patch available for this vulnerability?

No patch is available as CVE-2020-24979 is not a security vulnerability.

How can I check if my system is affected by this vulnerability?

You can use the Vulert Playground at Vulert Scanner to check if your system is affected by CVE-2020-24979. Simply upload your manifest file, such as package-lock.json, and the Vulert Playground will analyze it for any open-source vulnerabilities, including this one.