CVE-2018-12439

CVSS V2 Low 1.9 CVSS V3 Medium 4.7

Description

MatrixSSL through 3.9.5 Open allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

Overview

CVE ID
CVE-2018-12439

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2018-06-15T02:29:00

Last Modified Date
2018-08-06T16:55:56

Weakness Enumerations

CWE	URL
CWE-200	http://cwe.mitre.org/data/definitions/200.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:matrixssl:matrixssl::::::::	1	OR		3.9.5

CVSS Version 2

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

CVSS Version 3

Version
3.0

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

Attack Vector
LOCAL

Attack Compatibility
HIGH

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
NONE

Base Score
4.7

Base Severity
MEDIUM

Exploitability Score
1

Impact Score
3.6

References

Reference URL	Reference Tags
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2018-12439
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12439

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 18:40:16				Added to TrackCVE
2022-12-03 08:07:26	2018-06-15T02:29Z	2018-06-15T02:29:00	CVE Published Date	updated
2022-12-03 08:07:26		2018-08-06T16:55:56	CVE Modified Date	updated
2022-12-03 08:07:26		Analyzed	Vulnerability Status	updated