CVE-2020-15309

CVSS V2 Medium 6.9 CVSS V3 High 7

Description

An issue was discovered in wolfSSL before 4.5.0, when single precision is not employed. Local attackers can conduct a cache-timing attack against public key operations. These attackers may already have obtained sensitive information if the affected system has been used for private key operations (e.g., signing with a private key).

Overview

CVE ID
CVE-2020-15309

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2020-08-21T14:15:11

Last Modified Date
2022-11-16T13:50:21

Weakness Enumerations

CWE	URL
CWE-362	http://cwe.mitre.org/data/definitions/362.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:wolfssl:wolfssl::::::::	1	OR		4.5.0

CVSS Version 2

Version
2.0

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

Access Vector
LOCAL

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
COMPLETE

Integrity Impact
COMPLETE

Availability Impact
COMPLETE

Base Score
6.9

Severity
MEDIUM

Exploitability Score
3.4

Impact Score
10

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
HIGH

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7

Base Severity
HIGH

Exploitability Score
1

Impact Score
5.9

References

Reference URL	Reference Tags
https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable	Third Party Advisory
https://arxiv.org/abs/2008.12188

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-15309
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15309

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 16:21:47				Added to TrackCVE
2022-12-04 21:21:58	2020-08-21T14:15Z	2020-08-21T14:15:11	CVE Published Date	updated
2022-12-04 21:21:58		2022-11-16T13:50:21	CVE Modified Date	updated
2022-12-04 21:21:58		Analyzed	Vulnerability Status	updated