CVE-2020-12401 (GCVE-0-2020-12401)

Vulnerability from cvelistv5 – Published: 2020-10-08 00:00 – Updated: 2024-08-04 11:56
VLAI
Summary
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.
Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • Timing-attack on ECDSA signature generation
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Affected: unspecified , < 80 (custom)
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Mozilla Firefox for Android Affected: unspecified , < 80 (custom)
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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