#VU45797 Use of a broken or risky cryptographic algorithm in Mozilla NSS - CVE-2020-12400

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Main Vulnerability Database Vulnerabilities #VU45797

#VU45797 Use of a broken or risky cryptographic algorithm in Mozilla NSS - CVE-2020-12400

Published: August 20, 2020


Vulnerability identifier: #VU45797
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-12400
CWE-ID: CWE-327
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Mozilla NSS
Software vendor:
Mozilla

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists in Mozilla NSS library in the way P-384 and P-521 curves are used in the generation of EDSA signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key.


Remediation

Install updates from vendor's website.

External links