Name: CVE-2020-15309: Concurrent Execution using Shared Resource with Improper Synchronization
Creator: Rapid7
Published: 2020-08-21T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2020-15309, CWE-362, CVSS 7, EPSS 0.0034

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).

CVSS Details

CVSS 3.1 Base Score: 7
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade wolfssl	Jul 30, 2024	Aug 21, 2020
Ubuntu	—	No solution exists	Jun 26, 2025	Aug 21, 2020

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CVSS Details

Covered by Rapid7

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