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CVE-2020-12402

MEDIUM

4.4

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.

CVE Details

CVSS v3.1 Score4.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredLOW

User InteractionREQUIRED

Published7/9/2020

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

debian:debian_linuxfedoraproject:fedoramozilla:firefoxopensuse:leap

Weaknesses (CWE)

CWE-203

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00016.html(security@mozilla.org)

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00018.html(security@mozilla.org)

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html(security@mozilla.org)

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html(security@mozilla.org)

https://bugzilla.mozilla.org/show_bug.cgi?id=1631597(security@mozilla.org)

https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html(security@mozilla.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RFL6UNFK4MG2WDXLMLFAEIUSM5EUK7CG/(security@mozilla.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UWVDJRARXNWWWTCGMM63EXLQHH2LNOXO/(security@mozilla.org)

https://security.gentoo.org/glsa/202007-10(security@mozilla.org)

https://usn.ubuntu.com/4417-1/(security@mozilla.org)

https://usn.ubuntu.com/4417-2/(security@mozilla.org)

https://www.debian.org/security/2020/dsa-4726(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2020-24/(security@mozilla.org)

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00016.html(af854a3a-2127-422b-91ae-364da2661108)

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00018.html(af854a3a-2127-422b-91ae-364da2661108)

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html(af854a3a-2127-422b-91ae-364da2661108)

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html(af854a3a-2127-422b-91ae-364da2661108)

https://bugzilla.mozilla.org/show_bug.cgi?id=1631597(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RFL6UNFK4MG2WDXLMLFAEIUSM5EUK7CG/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UWVDJRARXNWWWTCGMM63EXLQHH2LNOXO/(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202007-10(af854a3a-2127-422b-91ae-364da2661108)

https://usn.ubuntu.com/4417-1/(af854a3a-2127-422b-91ae-364da2661108)

https://usn.ubuntu.com/4417-2/(af854a3a-2127-422b-91ae-364da2661108)

https://www.debian.org/security/2020/dsa-4726(af854a3a-2127-422b-91ae-364da2661108)

https://www.mozilla.org/security/advisories/mfsa2020-24/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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