Lua up to 5.4.0 Stack Resize buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, was found in Lua up to 5.4.0. This impacts an unknown function of the component Stack Resize Handler. Executing a manipulation can lead to buffer overflow. This vulnerability is registered as CVE-2020-15888. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in Lua up to 5.4.0. This vulnerability affects some unknown functionality of the component Stack Resize Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Lua through 5.4.0 mishandles the interaction between stack resizes and garbage collection, leading to a heap-based buffer overflow, heap-based buffer over-read, or use-after-free.

The weakness was published 07/21/2020. This vulnerability was named CVE-2020-15888 since 07/21/2020. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entry is available at VDB-158861. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Lua

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4.0

CPE 2.3info

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CPE 2.2info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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