CVE-2018-9056 Information

Description

Systems with microprocessors utilizing speculative execution may allow unauthorized disclosure of information to an attacker with local user access via a side-channel attack on the directional branch predictor as demonstrated by a pattern history table (PHT) aka BranchScope.

CVSS Vector

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

Reference

http://www.cs.ucr.edu/~nael/pubs/asplos18.pdf https://arstechnica.com/gadgets/2018/03/its-not-just-spectre-researchers-reveal-more-branch-prediction-attacks/

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.6