Windows CryptoAPI Spoofing Vulnerability

<p>A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.</p> <p>An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted, legitimate source. The user would have no way of knowing the file was malicious, because the digital signature would appear to be from a trusted provider.</p> <p>A successful exploit could also allow the attacker to conduct man-in-the-middle attacks and decrypt confidential information on user connections to the affected software.</p> <p>The security update addresses the vulnerability by ensuring that Windows CryptoAPI completely validates ECC certificates.</p>

Where it's fixed