CVE-2020-24371 Explained : Impact and Mitigation
Learn about CVE-2020-24371, a vulnerability in Lua 5.4.0 that mishandles memory access, potentially leading to denial of service or code execution. Find mitigation steps and updates here.
Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, resulting in a memory access violation involving collectgarbage.
Understanding CVE-2020-24371
Lua 5.4.0 vulnerability impacting memory access.
What is CVE-2020-24371?
This CVE involves lgc.c in Lua 5.4.0 mishandling the interaction between barriers and the sweep phase, leading to a memory access violation involving collectgarbage.
The Impact of CVE-2020-24371
The vulnerability can potentially be exploited to cause a memory access violation, which may result in a denial of service or arbitrary code execution.
Technical Details of CVE-2020-24371
Details on the technical aspects of the vulnerability.
Vulnerability Description
The issue arises from the mishandling of the interaction between barriers and the sweep phase in Lua 5.4.0, causing a memory access violation.
Affected Systems and Versions
- Product: Lua 5.4.0
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
Exploiting this vulnerability involves manipulating the interaction between barriers and the sweep phase to trigger a memory access violation.
Mitigation and Prevention
Ways to address and prevent the CVE-2020-24371 vulnerability.
Immediate Steps to Take
- Apply patches or updates provided by Lua to fix the vulnerability.
- Monitor Lua's official channels for security advisories and updates.
Long-Term Security Practices
- Regularly update Lua to the latest version to ensure all security patches are applied.
- Implement secure coding practices to minimize the risk of memory access violations.
Patching and Updates
- Lua has released patches to address this vulnerability; ensure you update to a patched version to mitigate the risk of exploitation.