National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-1551 Detail

Current Description

There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH512 are considered just feasible. However, for an attack the target would have to re-use the DH512 private key, which is not recommended anyway. Also applications directly using the low level API BN_mod_exp may be affected if they use BN_FLG_CONSTTIME. Fixed in OpenSSL 1.1.1e (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u (Affected 1.0.2-1.0.2t).

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.3 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00030.html
http://packetstormsecurity.com/files/155754/Slackware-Security-Advisory-openssl-Updates.html
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=419102400a2811582a7a3d4a4e317d72e5ce0a8f Mailing List Patch Vendor Advisory
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=f1c5eea8a817075d31e43f5876993c6710238c98 Mailing List Patch Vendor Advisory
https://seclists.org/bugtraq/2019/Dec/39
https://seclists.org/bugtraq/2019/Dec/46
https://security.netapp.com/advisory/ntap-20191210-0001/ Third Party Advisory
https://www.debian.org/security/2019/dsa-4594
https://www.openssl.org/news/secadv/20191206.txt Vendor Advisory
https://www.tenable.com/security/tns-2019-09

Weakness Enumeration

CWE-ID CWE Name Source
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
1.0.2
Up to (including)
1.0.2t
 cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
1.1.1
Up to (including)
1.1.1d


Change History

9 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-1551
NVD Published Date:
12/06/2019
NVD Last Modified:
03/17/2020