CVE-2020-15309

Published: Aug 21, 2020Modified: Jun 17, 2026

7.0

Vector

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

Exploitability: 1.0 / Impact: 5.9

Source: NVD

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).

Affected (1)

Products: Wolfssl: Wolfssl

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Wolfssl Wolfssl	Before 4.5.0

Related CWEs

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (4)

https://arxiv.org/abs/2008.12188

Source: cve@mitre.org

ExploitThird Party Advisory

https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable

Source: cve@mitre.org

Third Party Advisory

https://arxiv.org/abs/2008.12188

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.