Overview
- Description
- 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.
- Source
- security@mozilla.org
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 4.4
- Impact score
- 3.6
- Exploitability score
- 0.8
- Vector string
- CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 1.2
- Impact score
- 2.9
- Exploitability score
- 1.9
- Vector string
- AV:L/AC:H/Au:N/C:P/I:N/A:N
Weaknesses
- nvd@nist.gov
- CWE-203
Social media
- Hype score
- Not currently trending
Configurations
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