CVE-20XX-?
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CVE-2020-12402

4.4 MEDIUM 0.3% exploit odds Fix listed

What it is

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.

At a glance

Exploitability
Can be exploited locally on the machine with a low-privilege account, but needs a user to act. High risk of data exposure.
Exploit odds
0.3% chance of exploitation in the next 30 days (EPSS).
Fix
A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

  1. PublishedDisclosed publicly on CVE.org and NVD
  2. Last updatedMost recent change to the record

Why it ranks here

Details

Published
Last modified
Exploit probability
0.3% · EPSS, next 30 days
Weakness
CWE-203
Record status
Modified

Affected

Attack profile CVSS 3.1 · 4.4

Attack vector
Local
Complexity
High
Privileges needed
Low
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Raw vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-12402.md and follow it. Check whether this project is affected by CVE-2020-12402. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record