CVE-2019-20399 - Vulnerability Details - OpenCVE

Description

A timing vulnerability in the Scalar::check_overflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack.

Published: 2020-01-22

Score: 5.9 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:parity:libsecp256k1:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-1618	A timing vulnerability in the Scalar::check_overflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack.
Github GHSA	GHSA-7cqg-8449-rmfv	Observable Discrepancy in libsecp256k1-rs

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00391.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/paritytech/libsecp256k1/commit/11ba23a9766a5079918cd9f515bc100bc8164b50

History

No history.

Subscriptions

Parity Libsecp256k1

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-01-22T23:12:33.000Z

Updated: 2024-08-05T02:39:09.758Z

Reserved: 2020-01-22T00:00:00.000Z

Link: CVE-2019-20399

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-01-23T00:15:09.953

Modified: 2024-11-21T04:38:23.637

Link: CVE-2019-20399

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-203

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