#VU28522 Race condition in Mozilla NSS - CVE-2020-12399
Published: June 2, 2020 / Updated: July 15, 2020
Vulnerability identifier: #VU28522
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2020-12399
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla NSS
Mozilla NSS
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to time differences in Mozilla NSS library during the process of generating a DSA signature, the nonce value 'k' is not padded, exposing the bit length. Combined with other techniques, this can result in the recovery of the DSA private key.
Remediation
Install updates from vendor's website.