Improper Input Validation Affecting openssl package, versions >=1.0.200, <1.0.209 >=, <1.0.209

  • Attack Complexity


  • Availability


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  • snyk-id


  • published

    2 Oct 2019

  • disclosed

    26 Jul 2016

  • credit


How to fix?

Upgrade OpenSSL to version 1.0.209, 1.0.209 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 Improper Input Validation. OpenSSL is vulnerable to Denial of Service (DoS) attacks. A malicious user can crash the server by passing a malformed SHA512 TLS session ticket HMAC to the server, resulting in an out-of-bounds read which ultimately will result in crashing the server.