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.
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
|Base Score:||4.4||Base Metrics:||AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N|
|Access Vector:||Local network||Attack Complexity:||High|
|Privileges Required:||Low||User Interaction:||Required|
|Integrity Impact:||None||Availability Impact:||None|
|Oracle Linux version 7 (nspr)||ELSA-2020-4076||2020-10-08|
|Oracle Linux version 7 (nss)||ELSA-2020-4076||2020-10-08|
|Oracle Linux version 7 (nss-softokn)||ELSA-2020-4076||2020-10-08|
|Oracle Linux version 7 (nss-util)||ELSA-2020-4076||2020-10-08|
|Oracle Linux version 8 (nspr)||ELSA-2020-3280||2020-08-04|
|Oracle Linux version 8 (nss)||ELSA-2020-3280||2020-08-04|
This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team