CVE-2016-0702

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.

CVSS v3.1

5.1 MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0

1.9 LOWAV:L/AC:M/Au:N/C:P/I:N/A:N

EPSS

1.91% chance of exploitation in the next 30 days, 78th percentile

Published

2016-03-03

Updated

2024-08-05

Proof-of-concept exploits (1)

• Trinadh465/OpenSSL-1_0_1g_CVE-2016-07020★ · 2023-11-09

References

• CVE Record
• NVD entry

Related

• CVE-2016-0638
• CVE-2016-0709
• CVE-2016-0492
• CVE-2016-0710
• CVE-2016-0491
• CVE-2016-0727