User Enumeration Affecting mozilla package, versions [,78.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-UNMANAGED-MOZILLA-2377362
  • published26 Jan 2022
  • disclosed9 Jul 2020
  • creditUnknown

Introduced: 9 Jul 2020

CVE-2020-12402  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade mozilla to version 78.0 or higher.

Overview

Affected versions of this package are vulnerable to User Enumeration. During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes. Note: An unmodified Firefox browser does not generate RSA keys in normal operation and is not affected, but products built on top of it might. This vulnerability affects Firefox < 78.

CVSS Scores

version 3.1