CVE-2023-45287
CVSS 3.1 Score 7.5 of 10 (high)
Details
Published Dec 5, 2023
Updated: Jan 12, 2024
CWE ID 203
Summary
CVE-2023-45287: Before Go 1.20, the RSA-based TLS key exchanges in Go used the math/big library, which was not constant time. Although RSA blinding was employed to prevent timing attacks, recent analysis suggests that this measure may not have been entirely effective. Specifically, the removal of PKCS#1 padding in Go's implementation may cause timing leaks, potentially revealing session key bits. In response, Go 1.20 now utilizes a fully constant time RSA implementation in its crypto/tls library, mitigating these concerns.
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Affected Products
- Golang Go
Advisories, Assessments, and Mitigations
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