CVE-2021-24036: Out-of-bounds Write

July 23, 2021 (updated October 26, 2022)

Passing an attacker controlled size when creating an IOBuf could cause integer overflow, leading to an out-of-bounds write on the heap with the possibility of remote code execution.

References

hhvm.com/blog/2021/07/20/security-update.html
nvd.nist.gov/vuln/detail/CVE-2021-24036
www.facebook.com/security/advisories/cve-2021-24036

Code Behaviors & Features

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