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Vulnerability Details : CVE-2020-12402

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.
Publish Date : 2020-07-09 Last Update Date : 2022-01-04
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- CVSS Scores & Vulnerability Types

CVSS Score
1.2
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 203

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2020:3280: nss and nspr security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20203280 unix
RHSA-2020:4076: nss and nspr security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20204076 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2020-12402

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
2 OS Fedoraproject Fedora 32 * * * Version Details Vulnerabilities
3 Application Mozilla Firefox * * * * Version Details Vulnerabilities
4 OS Opensuse Leap 15.1 * * * Version Details Vulnerabilities
5 OS Opensuse Leap 15.2 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Fedoraproject Fedora 1
Mozilla Firefox 1
Opensuse Leap 2

- References For CVE-2020-12402

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UWVDJRARXNWWWTCGMM63EXLQHH2LNOXO/
FEDORA FEDORA-2020-3ef1937475
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
SUSE openSUSE-SU-2020:1017
https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html
MLIST [debian-lts-announce] 20200929 [SECURITY] [DLA 2388-1] nss security update
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RFL6UNFK4MG2WDXLMLFAEIUSM5EUK7CG/
FEDORA FEDORA-2020-16741ac7ff
https://usn.ubuntu.com/4417-2/
UBUNTU USN-4417-2
https://security.gentoo.org/glsa/202007-10
GENTOO GLSA-202007-10
https://www.debian.org/security/2020/dsa-4726
DEBIAN DSA-4726
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00018.html
SUSE openSUSE-SU-2020:0955
https://usn.ubuntu.com/4417-1/
UBUNTU USN-4417-1
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
SUSE openSUSE-SU-2020:0983
https://www.mozilla.org/security/advisories/mfsa2020-24/
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00016.html
SUSE openSUSE-SU-2020:0953
https://bugzilla.mozilla.org/show_bug.cgi?id=1631597

- Metasploit Modules Related To CVE-2020-12402

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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