<p>Several SIMATIC products are affected by a timing based side channel vulnerability in the OpenSSL RSA Decryption (CVE-2023-4304), as disclosed on 2023-02-07 at <a href="https://www.openssl.org/news/secadv/20230207.txt" class="uri">https://www.openssl.org/news/secadv/20230207.txt</a>.</p>
<p>Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.</p>
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