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Test ID:1.3.6.1.4.1.25623.1.0.112409
Category:General
Title:OpenSSL: Timing vulnerability in ECDSA signature generation (CVE-2018-0735) (Windows)
Summary:This host is running OpenSSL and is prone; to an information disclosure vulnerability.
Description:Summary:
This host is running OpenSSL and is prone
to an information disclosure vulnerability.

Vulnerability Insight:
The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a
timing side channel attack. An attacker could use variations in the signing
algorithm to recover the private key.

Vulnerability Impact:
A remote user that can conduct a man-in-the-middle attack can exploit a
timing vulnerability in its ECDSA signature algorithm to cause the target system to disclose private keys.

Affected Software/OS:
OpenSSL versions 1.1.0-1.1.0i and 1.1.1.

Solution:
Upgrade OpenSSL to version 1.1.0j-dev, 1.1.1a-dev or manually apply the fixes via Github.
See the references for more details.

CVSS Score:
4.0

CVSS Vector:
AV:L/AC:H/Au:N/C:C/I:N/A:N

Cross-Ref: BugTraq ID: 105750
Common Vulnerability Exposure (CVE) ID: CVE-2018-0735
https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html
Debian Security Information: DSA-4348 (Google Search)
https://www.debian.org/security/2018/dsa-4348
https://usn.ubuntu.com/3840-1/
http://www.securityfocus.com/bid/105750
http://www.securitytracker.com/id/1041986
CopyrightCopyright (C) 2018 Greenbone Networks GmbH

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