github - ghsa-g9j4-hp3j-g668

ghsa-g9j4-hp3j-g668

Vulnerability from github

Published

2022-05-24 22:01

Modified

2024-04-04 03:07

Severity ?

5.9 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

A side-channel issue was discovered in Botan before 2.9.0. An attacker capable of precisely measuring the time taken for ECC key generation may be able to derive information about the high bits of the secret key, as the function to derive the public point from the secret scalar uses an unblinded Montgomery ladder whose loop iteration count depends on the bitlength of the secret. This issue affects only key generation, not ECDSA signatures or ECDH key agreement.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2018-20187"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-03-08T19:29:00Z",
    "severity": "MODERATE"
  },
  "details": "A side-channel issue was discovered in Botan before 2.9.0. An attacker capable of precisely measuring the time taken for ECC key generation may be able to derive information about the high bits of the secret key, as the function to derive the public point from the secret scalar uses an unblinded Montgomery ladder whose loop iteration count depends on the bitlength of the secret. This issue affects only key generation, not ECDSA signatures or ECDH key agreement.",
  "id": "GHSA-g9j4-hp3j-g668",
  "modified": "2024-04-04T03:07:05Z",
  "published": "2022-05-24T22:01:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20187"
    },
    {
      "type": "WEB",
      "url": "https://botan.randombit.net/news.html"
    },
    {
      "type": "WEB",
      "url": "https://botan.randombit.net/security.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/crocs-muni/ECTester"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2018-20187

Vulnerability from cvelistv5

Published

2019-03-08 19:00

Modified

2024-08-05 11:58

Severity ?

Summary

References

▼	URL	Tags
	https://github.com/crocs-muni/ECTester	x_refsource_MISC
	https://botan.randombit.net/news.html	x_refsource_MISC
	https://botan.randombit.net/security.html	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

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            ],
            "url": "https://botan.randombit.net/security.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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      "x_legacyV4Record": {
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  "cveMetadata": {
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    "datePublished": "2019-03-08T19:00:00",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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