National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-13629 Detail

Current Description

MatrixSSL 4.2.1 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or a remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because crypto/pubkey/ecc_math.c scalar multiplication leaks the bit length of the scalar.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.9 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2019/10/02/2 Mailing List Third Party Advisory
https://eprint.iacr.org/2011/232.pdf Not Applicable
https://minerva.crocs.fi.muni.cz/ Product
https://tches.iacr.org/index.php/TCHES/article/view/7337 Not Applicable

Weakness Enumeration

CWE-ID CWE Name Source
CWE-327 Use of a Broken or Risky Cryptographic Algorithm NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
4.2.1


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-13629
NVD Published Date:
10/03/2019
NVD Last Modified:
10/08/2019