medium
5.3
CWE
191
Advisory Published
Updated

CVE-2020-24370: Integer Underflow

First published: Mon Aug 17 2020(Updated: )

ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Lua Lua=5.4.0
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Debian Debian Linux=9.0
IBM QRadar SIEM<=7.5.0 GA
IBM QRadar SIEM<=7.4.3 GA - 7.4.3 FP4
IBM QRadar SIEM<=7.3.3 GA - 7.3.3 FP10
Lua Lua=5.2.0
Lua Lua=5.2.0-alpha
Lua Lua=5.2.0-beta
Lua Lua=5.2.1
Lua Lua=5.2.2
Lua Lua=5.2.3
Lua Lua=5.3.0
Lua Lua=5.3.0-alpha
Lua Lua=5.3.0-beta
Lua Lua=5.3.1
Lua Lua=5.3.2
Lua Lua=5.3.3
Lua Lua=5.3.4
Lua Lua=5.3.5
Lua Lua=5.4.0-alpha
Lua Lua=5.4.0-beta

Remedy

https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7b

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID of this vulnerability?

    The vulnerability ID is CVE-2020-24370.

  • What is the severity of CVE-2020-24370?

    The severity of CVE-2020-24370 is medium.

  • How does CVE-2020-24370 impact Lua?

    CVE-2020-24370 can cause a denial of service in Lua.

  • How can I fix CVE-2020-24370 in IBM QRadar SIEM 7.5.0 GA?

    You can fix CVE-2020-24370 in IBM QRadar SIEM 7.5.0 GA by applying the patch available at [IBM Support](https://www.ibm.com/support/fixcentral/swg/downloadFixes?parent=IBM%20Security&product=ibm/Other+software/IBM+Security+QRadar+SIEM&release=All&platform=Linux&function=fixId&fixids=7.5.0-QRADAR-QRSIEM-20220215133427&includeRequisites=1&includeSupersedes=0&downloadMethod=http&login=true).

  • How can I fix CVE-2020-24370 in IBM QRadar SIEM 7.4.3 GA - 7.4.3 FP4?

    You can fix CVE-2020-24370 in IBM QRadar SIEM 7.4.3 GA - 7.4.3 FP4 by applying the patch available at [IBM Support](https://www.ibm.com/support/fixcentral/swg/downloadFixes?parent=IBM%20Security&product=ibm/Other+software/IBM+Security+QRadar+SIEM&release=All&platform=Linux&function=fixId&fixids=7.4.3-QRADAR-QRSIEM-20220307203834&includeRequisites=1&includeSupersedes=0&downloadMethod=http).

  • How can I fix CVE-2020-24370 in IBM QRadar SIEM 7.3.3 GA - 7.3.3 FP10?

    You can fix CVE-2020-24370 in IBM QRadar SIEM 7.3.3 GA - 7.3.3 FP10 by applying the patch available at [IBM Support](https://www.ibm.com/support/fixcentral/swg/downloadFixes?parent=IBM%20Security&product=ibm/Other+software/IBM%20Security%20QRadar%20Vulnerability%20Manager&release=All&platform=All&function=fixId&fixids=7.3.3-QRADAR-QRSIEM-20220318161607&includeRequisites=1&includeSupersedes=0&downloadMethod=http&source=SAR).

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