CVE-2020-15309

HIGH

wolfssl < 4.5.0 - Cache-Timing Attack via Public Key Operations

Title source: llm
STIX 2.1

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).

References (2)

Core 2
Core References
Third Party Advisory x_refsource_confirm
https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable
Exploit, Third Party Advisory x_refsource_misc
https://arxiv.org/abs/2008.12188

Scores

CVSS v3 7.0
EPSS 0.0034
EPSS Percentile 25.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-362
Status published
Products (1)
wolfssl/wolfssl < 4.5.0
Published Aug 21, 2020
Tracked Since Feb 18, 2026