Vulnerability-Lookup

CVE-2020-6829 (GCVE-0-2020-6829)

Vulnerability from cvelistv5 – Published: 2020-10-28 00:00 – Updated: 2024-08-04 09:11

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.

Severity

5.3 (Medium)


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

CWE

P-384 and P-521 vulnerable to an electro-magnetic side channel attack on signature generation

Assigner

mozilla mitre root

References

4 references

URL	Tags
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://bugzilla.mozilla.org/show_bug.cgi?id=1631583
https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Impacted products

2 products

Vendor	Product	Version	CPE status
Mozilla	Firefox	Affected: unspecified , < 80 (custom)	guessed
Mozilla	Firefox for Android	Affected: unspecified , < 80 (custom)	guessed

Show details on NVD website

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    "redhat_vex": {
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      "cve": "CVE-2020-6829",
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      "source": "Red Hat CSAF VEX",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2020-6829 (GCVE-0-2020-6829)

WID-SEC-W-2022-1831

WID-SEC-W-2024-1591

Tags

Sightings

Nomenclature