CVE-2020-12402
CVE-2020-12402
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
09 Jul 2020Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
Affected products
Mozilla · FirefoxReferences
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00016.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00018.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlhttps://bugzilla.mozilla.org/show_bug.cgi?id=1631597https://lists.debian.org/debian-lts-announce/2020/09/msg00029.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RFL6UNFK4MG2WDXLMLFAEIUSM5EUK7CG/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UWVDJRARXNWWWTCGMM63EXLQHH2LNOXO/https://security.gentoo.org/glsa/202007-10https://usn.ubuntu.com/4417-1/https://usn.ubuntu.com/4417-2/https://www.debian.org/security/2020/dsa-4726