Test ID:	1.3.6.1.4.1.25623.1.0.114924
Category:	General
Title:	OpenSSL Timing Side-Channel Vulnerability (20250120) - Linux
Summary:	OpenSSL is prone to a timing side-channel vulnerability.
Description:	Summary: OpenSSL is prone to a timing side-channel vulnerability. Vulnerability Insight: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation. Vulnerability Impact: A timing side-channel in ECDSA signature computations could allow recovering the private key by an attacker. However, measuring the timing would require either local access to the signing application or a very fast network connection with low latency. There is a timing signal of around 300 nanoseconds when the top word of the inverted ECDSA nonce value is zero. This can happen with significant probability only for some of the supported elliptic curves. In particular the NIST P-521 curve is affected. To be able to measure this leak, the attacker process must either be located in the same physical computer or must have a very fast network connection with low latency. For that reason the severity of this vulnerability is Low. Affected Software/OS: OpenSSL versions 1.0.2, 1.1.1, 3.0, 3.1, 3.2, 3.3 and 3.4. Solution: Update to version 1.0.2zl, 1.1.1zb, 3.0.16, 3.1.8, 3.2.4, 3.3.3, 3.4.1 or later. CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2024-13176
Copyright	Copyright (C) 2025 Greenbone AG

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