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Test ID:1.3.6.1.4.1.25623.1.0.108483
Category:General
Title:OpenSSL: Microarchitecture timing vulnerability in ECC scalar multiplication (CVE-2018-5407) (Linux)
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:
OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH,
has been shown to be vulnerable to a microarchitecture timing side channel attack.

Vulnerability Impact:
An attacker with sufficient access to mount local timing attacks
during ECDSA signature generation could recover the private key.

Affected Software/OS:
OpenSSL versions 1.1.0-1.1.0h and 1.0.2-1.0.2p.

Solution:
Upgrade OpenSSL to version 1.0.2q, 1.1.0i or later. See the references for more details.

CVSS Score:
1.9

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

Cross-Ref: BugTraq ID: 105897
Common Vulnerability Exposure (CVE) ID: CVE-2018-5407
http://www.securityfocus.com/bid/105897
Debian Security Information: DSA-4348 (Google Search)
https://www.debian.org/security/2018/dsa-4348
Debian Security Information: DSA-4355 (Google Search)
https://www.debian.org/security/2018/dsa-4355
https://www.exploit-db.com/exploits/45785/
https://security.gentoo.org/glsa/201903-10
https://eprint.iacr.org/2018/1060.pdf
https://github.com/bbbrumley/portsmash
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html
RedHat Security Advisories: RHSA-2019:0483
https://access.redhat.com/errata/RHSA-2019:0483
RedHat Security Advisories: RHSA-2019:0651
https://access.redhat.com/errata/RHSA-2019:0651
RedHat Security Advisories: RHSA-2019:0652
https://access.redhat.com/errata/RHSA-2019:0652
https://usn.ubuntu.com/3840-1/
CopyrightCopyright (C) 2018 Greenbone Networks GmbH

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