The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o).

References;a=commitdiff;h=349a41da1ad88ad87825414752a8ff5fdd6a6c3f;a=commitdiff;h=6939eab03a6e23d2bd2c3f5e34fe1d48e542e787[email protected]/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/[email protected]/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/[email protected]/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/


Source: MITRE

Published: 2018-04-16

Updated: 2019-10-03

Type: CWE-327

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 2.2

Severity: MEDIUM