1.9
CVSSv2

CVE-2018-12439

Published: 15/06/2018 Updated: 06/08/2018
CVSS v2 Base Score: 1.9 | Impact Score: 2.9 | Exploitability Score: 3.4
CVSS v3 Base Score: 4.7 | Impact Score: 3.6 | Exploitability Score: 1
VMScore: 169
Vector: AV:L/AC:M/Au:N/C:P/I:N/A:N

Vulnerability Summary

MatrixSSL up to and including 3.9.5 Open allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

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