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prionPRIOn knowledge basePRION:CVE-2016-0702
HistoryMar 03, 2016 - 8:59 p.m.

Design/Logic Flaw

2016-03-0320:59:00
PRIOn knowledge base
www.prio-n.com
8

8.6 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

51.7%

The MOD_EXP_CTIME_COPY_FROM_PREBUF function in crypto/bn/bn_exp.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not properly consider cache-bank access times during modular exponentiation, which makes it easier for local users to discover RSA keys by running a crafted application on the same Intel Sandy Bridge CPU core as a victim and leveraging cache-bank conflicts, aka a “CacheBleed” attack.

References