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.

• CVE ID
• CVE-2016-0702

• Assigner
• secalert@redhat.com

• Vulnerability Status
• Modified

• Published Version
• 2016-03-03T20:59:00

• Last Modified Date
• 2022-12-13T12:15:18

• Version
• 2.0

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

• Access Vector
• LOCAL

• Access Compatibility
• MEDIUM

• Authentication
• NONE

• Confidentiality Impact
• PARTIAL

• Integrity Impact
• NONE

• Availability Impact
• NONE

• Base Score
• 1.9

• Severity
• LOW

• Exploitability Score
• 3.4

• Impact Score
• 2.9

• Version
• 3.1

• Vector String
• CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

• Attack Vector
• LOCAL

• Attack Compatibility
• HIGH

• Privileges Required
• NONE

• User Interaction
• NONE

• Scope
• UNCHANGED

• Confidentiality Impact
• HIGH

• Availability Impact
• NONE

• Base Score
• 5.1

• Base Severity
• MEDIUM

• Exploitability Score
• 1.4

• Impact Score
• 3.6