Home/CVE/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
CVE

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

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.

MEDIUM · CVSS 5.1 EPSS 0.00461
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0

Affected Products & Versions

6
opensslall versions
nodejs node.js>= 4.0.0 and <= 4.1.2
nodejs node.js>= 4.2.0 and < 4.3.2
nodejs node.js>= 5.0.0 and < 5.7.1
debian linuxall versions

Scoring & Timeline

5.1
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Mar 2016 · 08:59 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Vendor Advisories

22
suse-csafopenSUSE-SU-2024:10271-1
suse-csafopenSUSE-SU-2024:10309-1
suse-csafopenSUSE-SU-2024:10529-1
suse-csafopenSUSE-SU-2024:11127-1
siemens-csafSSA-412672
🔗

References & Sources

44
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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