OpenSSL version 3.0.5 fixes a flaw that could potentially lead to RCE

July 7, 2022  By Pierluigi Paganini


The development team behind the OpenSSL project fixed a high-severity bug in the library that could potentially lead to remote code execution.

The maintainers of the OpenSSL project fixed a high-severity heap memory corruption issue, tracked as CVE-2022-2274, affecting the popular library.

This bug makes the RSA implementation with 2048 bit private keys incorrect on such machines and triggers a memory corruption during the computation. A remote attacker can exploit the memory corruption to achieve code execution on the machine while performing the computation.

The CVE-2022-2274 vulnerability was introduced in OpenSSL version 3.0.4 released on June 21, 2022.

“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.” reads the advisory published by the Project Maintainers. “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.”

OpenSSL CVE-2021-3711

The OpenSSL software library allows secure communications over computer networks against eavesdropping or need to identify the party at the other end. OpenSSL contains an open-source implementation of the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols.

The vulnerability was reported to project maintainers on 22nd June 2022 by Ph.D. student Xi Ruoyao who also developed the patch.

The flaw has been addressed with the release of OpenSSL version 3.0.5, users of the library have to upgrade their instances as soon as possible.

In June, the security expert Guido Vranken discovered a remote memory-corruption vulnerability in the OpenSSL version 3.0.4 which was released on June 21, 2022.

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Pierluigi Paganini

(SecurityAffairs – hacking, encryption)

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Pierluigi Paganini
Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.





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