Detections
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CVE-2020-12402
medium
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.
References
https://www.debian.org/security/2020/dsa-4726
https://usn.ubuntu.com/4417-2/
https://usn.ubuntu.com/4417-1/
https://security.gentoo.org/glsa/202007-10
https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00016.html