github - ghsa-6xrq-2ww3-f6h5

GHSA-6XRQ-2WW3-F6H5

Vulnerability from github – Published: 2022-05-24 17:46 – Updated: 2022-05-24 17:46

Details

A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-20305"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-327",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-05T22:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA \u0026 ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.",
  "id": "GHSA-6xrq-2ww3-f6h5",
  "modified": "2022-05-24T17:46:36Z",
  "published": "2022-05-24T17:46:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20305"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1942533"
    },
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      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/09/msg00008.html"
    },
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      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQKWVVMAIDAJ7YAA3VVO32BHLDOH2E63"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202105-31"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20211022-0002"
    },
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      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4933"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2021-20305 (GCVE-0-2021-20305)

Vulnerability from cvelistv5 – Published: 2021-04-05 21:31 – Updated: 2024-08-03 17:37

Summary

Severity ?

No CVSS data available.

CWE

CWE-327

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1942533	x_refsource_MISC
	https://security.gentoo.org/glsa/202105-31	vendor-advisoryx_refsource_GENTOO
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://www.debian.org/security/2021/dsa-4933	vendor-advisoryx_refsource_DEBIAN
	https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
	https://security.netapp.com/advisory/ntap-2021102…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	nettle	Affected: nettle 3.7.2

Show details on NVD website

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-6XRQ-2WW3-F6H5

CVE-2021-20305 (GCVE-0-2021-20305)

Tags

Sightings

Nomenclature