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Vulnerability details: VCID-mfgf-bqs7-aaan
Vulnerability ID VCID-mfgf-bqs7-aaan
Aliases CVE-2020-6829
Summary When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which leaked partial information about the nonce used during signature generation. Given an electro-magnetic trace of a few signature generations, the private key could have been computed. This vulnerability affects Firefox < 80 and Firefox for Android < 80.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-327 Use of a Broken or Risky Cryptographic Algorithm
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-6829.html
rhas Moderate https://access.redhat.com/errata/RHSA-2020:4076
rhas Moderate https://access.redhat.com/errata/RHSA-2021:0538
cvssv3 4.4 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6829.json
epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
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epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
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epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
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epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
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epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00187 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
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epss 0.00192 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
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epss 0.00192 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00192 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00192 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00192 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00192 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00192 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00225 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
epss 0.00566 https://api.first.org/data/v1/epss?cve=CVE-2020-6829
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1826187
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6829
generic_textual Medium https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-6829
cvssv3 5.3 https://nvd.nist.gov/vuln/detail/CVE-2020-6829
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2020-6829
generic_textual Medium https://ubuntu.com/security/notices/USN-4455-1
generic_textual Medium https://ubuntu.com/security/notices/USN-4474-1
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-36
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2020-36/#CVE-2020-6829
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2020-39
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-6829.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6829.json
https://api.first.org/data/v1/epss?cve=CVE-2020-6829
https://bugzilla.mozilla.org/show_bug.cgi?id=1631583
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6829
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes
https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html
https://ubuntu.com/security/notices/USN-4455-1
https://ubuntu.com/security/notices/USN-4474-1
https://www.mozilla.org/en-US/security/advisories/mfsa2020-36/#CVE-2020-6829
https://www.mozilla.org/security/advisories/mfsa2020-36/
https://www.mozilla.org/security/advisories/mfsa2020-39/
1826187 https://bugzilla.redhat.com/show_bug.cgi?id=1826187
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:-:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:-:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:*
CVE-2020-6829 https://nvd.nist.gov/vuln/detail/CVE-2020-6829
mfsa2020-36 https://www.mozilla.org/en-US/security/advisories/mfsa2020-36
mfsa2020-39 https://www.mozilla.org/en-US/security/advisories/mfsa2020-39
RHSA-2020:4076 https://access.redhat.com/errata/RHSA-2020:4076
RHSA-2021:0538 https://access.redhat.com/errata/RHSA-2021:0538
RHSA-2021:0949 https://access.redhat.com/errata/RHSA-2021:0949
USN-4455-1 https://usn.ubuntu.com/4455-1/
USN-4474-1 https://usn.ubuntu.com/4474-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-6829.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6829
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6829
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-6829
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.37484
EPSS Score 0.00187
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.