title: RSA implementation bug in AVX512IFMA instructions
description: The OpenSSL 3.0.4 release introduced a serious bug in the RSA implementation for X86_64 CPUs supporting the AVX512IFMA instructions. This issue makes the RSA implementation with 2048 bit private keys incorrect on such machines and memory corruption will happen during the computation. As a consequence of the memory corruption an attacker may be able to trigger a remote code execution on the machine performing the computation. SSL/TLS servers or other servers using 2048 bit RSA private keys running on machines supporting AVX512IFMA instructions of the X86_64 architecture are affected by this issue.
problem types: Memory Corruption
affected:
{
product: OpenSSL
vendor: OpenSSL
versions:
status: affected, version: Affects OpenSSL 3.0.4
}
metrics:
other: [
content: {'lang': 'eng', 'url': 'https://www.openssl.org/policies/secpolicy.html#high', 'value': 'High'}
type: unknown
]