CVE-2021-45929 : Exploit Details and Defense Strategies
Learn about CVE-2021-45929 affecting Wasm3 0.5.0 with an out-of-bounds write vulnerability. Find mitigation steps and details on affected systems and exploitation mechanisms.
Wasm3 0.5.0 has an out-of-bounds write vulnerability in CompileBlock, as called from CompileElseBlock and Compile_If.
Understanding CVE-2021-45929
What is CVE-2021-45929?
Wasm3 0.5.0 has a vulnerability that can lead to an out-of-bounds write when executing certain functions.
The Impact of CVE-2021-45929
This vulnerability could be exploited by attackers to execute arbitrary code or cause a denial of service.
Technical Details of CVE-2021-45929
Vulnerability Description
Wasm3 0.5.0 has an out-of-bounds write issue in CompileBlock.
Affected Systems and Versions
- Affected Systems: Not applicable
- Affected Version: Wasm3 0.5.0
Exploitation Mechanism
The vulnerability can be triggered through specific functions like CompileElseBlock and Compile_If.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade to a patched version of Wasm3 that addresses the out-of-bounds write vulnerability.
- Monitor for any unusual activities that could indicate exploitation attempts.
Long-Term Security Practices
- Regularly update software and libraries to patch known vulnerabilities.
- Conduct security assessments to identify and address potential security weaknesses.
Patching and Updates
Patch and update Wasm3 to the latest version containing the fix for the out-of-bounds write vulnerability.