CVE-2020-12402
Published: 19 June 2020
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.
Priority
Medium
CVSS 3 base score: 4.4
Status
| Package | Release | Status |
|---|---|---|
|
nss Launchpad, Ubuntu, Debian |
bionic |
Released
(2:3.35-2ubuntu2.9)
|
| eoan |
Released
(2:3.45-1ubuntu2.4)
|
|
| focal |
Released
(2:3.49.1-1ubuntu1.2)
|
|
| precise |
Released
(2:3.28.4-0ubuntu0.12.04.9)
|
|
| trusty |
Released
(2:3.28.4-0ubuntu0.14.04.5+esm6)
|
|
| upstream |
Released
(3.53.1)
|
|
| xenial |
Released
(2:3.28.4-0ubuntu0.16.04.12)
|