5
CVSSv2

CVE-2014-5386

Published: 28/12/2014 Updated: 30/12/2014
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Vulnerability Summary

The mcrypt_create_iv function in hphp/runtime/ext/mcrypt/ext_mcrypt.cpp in Facebook HipHop Virtual Machine (HHVM) prior to 3.3.0 does not seed the random number generator, which makes it easier for remote malicious users to defeat cryptographic protection mechanisms by leveraging the use of a single initialization vector.

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