Information Exposure Affecting openssl package, versions >=1.0.200, <1.0.211

  • Attack Complexity


  • Confidentiality


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  • snyk-id


  • published

    2 Oct 2019

  • disclosed

    15 Jan 2017

  • credit


How to fix?

Upgrade OpenSSL to version 1.0.211 or higher.


OpenSSL is a SSL/TLS and Crypto toolkit. Deprecated in Mac OS and gone in iOS, this spec gives your project non-deprecated OpenSSL support.

Affected versions of this package are vulnerable to Information Exposure. OpenSSL is vulnerable to information disclosure. The library contains a carry propagation bug during the montgomery squaring procedure. This makes it easier for a malicious user to obtain sensitive private key information from the Diffie-Hellman Ciphersuite as the attack can be conducted offline.