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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2019-1547 Detail

Description

Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths. However, in some cases, it is possible to construct a group using explicit parameters (instead of using a named curve). In those cases it is possible that such a group does not have the cofactor present. This can occur even where all the parameters match a known named curve. If such a curve is used then OpenSSL falls back to non-side channel resistant code paths which may result in full key recovery during an ECDSA signature operation. In order to be vulnerable an attacker would have to have the ability to time the creation of a large number of signatures where explicit parameters with no co-factor present are in use by an application using libcrypto. For the avoidance of doubt libssl is not vulnerable because explicit parameters are never used. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00054.html CVE, OpenSSL Software Foundation
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00072.html CVE, OpenSSL Software Foundation
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00012.html CVE, OpenSSL Software Foundation
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00016.html CVE, OpenSSL Software Foundation
http://packetstormsecurity.com/files/154467/Slackware-Security-Advisory-openssl-Updates.html CVE, OpenSSL Software Foundation
https://arxiv.org/abs/1909.01785 CVE, OpenSSL Software Foundation Third Party Advisory 
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=21c856b75d81eff61aa63b4f036bb64a85bf6d46 CVE, OpenSSL Software Foundation
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=30c22fa8b1d840036b8e203585738df62a03cec8 CVE, OpenSSL Software Foundation
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=7c1709c2da5414f5b6133d00a03fc8c5bf996c7a CVE, OpenSSL Software Foundation
https://kc.mcafee.com/corporate/index?page=content&id=SB10365 CVE, OpenSSL Software Foundation
https://lists.debian.org/debian-lts-announce/2019/09/msg00026.html CVE, OpenSSL Software Foundation
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/ CVE, OpenSSL Software Foundation
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/ CVE, OpenSSL Software Foundation
https://seclists.org/bugtraq/2019/Oct/0 CVE, OpenSSL Software Foundation
https://seclists.org/bugtraq/2019/Oct/1 CVE, OpenSSL Software Foundation
https://seclists.org/bugtraq/2019/Sep/25 CVE, OpenSSL Software Foundation Third Party Advisory 
https://security.gentoo.org/glsa/201911-04 CVE, OpenSSL Software Foundation
https://security.netapp.com/advisory/ntap-20190919-0002/ CVE, OpenSSL Software Foundation
https://security.netapp.com/advisory/ntap-20200122-0002/ CVE, OpenSSL Software Foundation
https://security.netapp.com/advisory/ntap-20200416-0003/ CVE, OpenSSL Software Foundation
https://security.netapp.com/advisory/ntap-20240621-0006/ CVE, OpenSSL Software Foundation
https://support.f5.com/csp/article/K73422160?utm_source=f5support&amp%3Butm_medium=RSS CVE, OpenSSL Software Foundation
https://usn.ubuntu.com/4376-1/ CVE, OpenSSL Software Foundation
https://usn.ubuntu.com/4376-2/ CVE, OpenSSL Software Foundation
https://usn.ubuntu.com/4504-1/ CVE, OpenSSL Software Foundation
https://www.debian.org/security/2019/dsa-4539 CVE, OpenSSL Software Foundation
https://www.debian.org/security/2019/dsa-4540 CVE, OpenSSL Software Foundation
https://www.openssl.org/news/secadv/20190910.txt CVE, OpenSSL Software Foundation Vendor Advisory 
https://www.oracle.com/security-alerts/cpuapr2020.html CVE, OpenSSL Software Foundation
https://www.oracle.com/security-alerts/cpujan2020.html CVE, OpenSSL Software Foundation
https://www.oracle.com/security-alerts/cpujul2020.html CVE, OpenSSL Software Foundation
https://www.oracle.com/security-alerts/cpuoct2020.html CVE, OpenSSL Software Foundation
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html CVE, OpenSSL Software Foundation
https://www.tenable.com/security/tns-2019-08 CVE, OpenSSL Software Foundation
https://www.tenable.com/security/tns-2019-09 CVE, OpenSSL Software Foundation

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

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Change History

32 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-1547
NVD Published Date:
09/10/2019
NVD Last Modified:
11/20/2024
Source:
OpenSSL Software Foundation