Use of a Broken or Risky Cryptographic Algorithm

Affecting nss package, versions <2:3.26.2-1.1+deb9u2

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Overview

Affected versions of this package are vulnerable to Use of a Broken or Risky Cryptographic Algorithm. During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar multiplication was removed, resulting in variable-time execution dependent on secret data. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

Remediation

Upgrade nss to version or higher.

References

CVSS Score

4.7
medium severity
  • Attack Vector
    Local
  • Attack Complexity
    High
  • Privileges Required
    Low
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    None
  • Availability
    None
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE
CVE-2020-12401
CWE
CWE-327
Snyk ID
SNYK-DEBIAN9-NSS-597143
Disclosed
08 Oct, 2020
Published
01 Aug, 2020