NVD - CVE-2018-9056

CVE-2018-9056 Detail

Current 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.

Source: MITRE
Description Last Modified: 03/27/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.6 MEDIUM
Vector: AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N (V3 legend)
Impact Score: 4.0
Exploitability Score: 1.1

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.7 MEDIUM
Vector: (AV:L/AC:M/Au:N/C:C/I:N/A:N) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.4

Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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

Technical Details

Vulnerability Type (View All)

Information Leak / Disclosure (CWE-200)

Vulnerable software and versions Switch to CPE 2.2

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Change History

1 change record found - show changes

Initial Analysis - 4/24/2018 8:05:47 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR cpe:2.3:h:arm:cortex-a:9::::::: cpe:2.3:h:arm:cortex-a:15::::::: cpe:2.3:h:arm:cortex-a:17::::::: cpe:2.3:h:arm:cortex-a:57::::::: cpe:2.3:h:arm:cortex-a:72::::::: cpe:2.3:h:arm:cortex-a:73::::::: cpe:2.3:h:arm:cortex-a:75:::::::
Added	CPE Configuration		Record truncated, showing 500 of 53385 characters. View Entire Change Record OR cpe:2.3:h:intel:atom_c:c2308::::::: cpe:2.3:h:intel:atom_c:c2316::::::: cpe:2.3:h:intel:atom_c:c2338::::::: cpe:2.3:h:intel:atom_c:c2350::::::: cpe:2.3:h:intel:atom_c:c2358::::::: cpe:2.3:h:intel:atom_c:c2508::::::: cpe:2.3:h:intel:atom_c:c2516::::::: cpe:2.3:h:intel:atom_c:c2518::::::: cpe:2.3:h:intel:atom_c:c2530::::::: cpe:2.3:h:intel:atom_c:c2538::::::: *c
Added	CVSS V2		(AV:L/AC:M/Au:N/C:C/I:N/A:N)
Added	CVSS V3		AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Added	CWE		CWE-200
Changed	Reference Type	http://www.cs.ucr.edu/~nael/pubs/asplos18.pdf No Types Assigned	http://www.cs.ucr.edu/~nael/pubs/asplos18.pdf Exploit, Third Party Advisory
Changed	Reference Type	https://arstechnica.com/gadgets/2018/03/its-not-just-spectre-researchers-reveal-more-branch-prediction-attacks/ No Types Assigned	https://arstechnica.com/gadgets/2018/03/its-not-just-spectre-researchers-reveal-more-branch-prediction-attacks/ Third Party Advisory

Quick Info

CVE Dictionary Entry:
CVE-2018-9056
NVD Published Date:
03/27/2018
NVD Last Modified:
04/24/2018

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