CVE-2018-0735 Information

Description

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. Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1).

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

http://www.securityfocus.com/bid/105750 http://www.securitytracker.com/id/1041986 https://access.redhat.com/errata/RHSA-2019:3700 https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=56fb454d281a023b3f950d969693553d3f3ceea1 https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4 https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/ https://security.netapp.com/advisory/ntap-20181105-0002/ https://usn.ubuntu.com/3840-1/ https://www.debian.org/security/2018/dsa-4348 https://www.openssl.org/news/secadv/20181029.txt https://www.oracle.com/security-alerts/cpujan2020.html https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.9