github - ghsa-6xx3-rg99-gc3p

ghsa-6xx3-rg99-gc3p

Vulnerability from github

Published

2021-08-13 15:22

Modified

2021-05-21 17:50

Severity ?

5.1 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

Timing based private key exposure in Bouncy Castle

Details

Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.2.1, BC before 1.66, BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures.

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.0.2"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.bouncycastle:bc-fips"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.bouncycastle:bcprov-ext-jdk15on"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.66"
            }
          ],
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        }
      ]
    },
    {
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      },
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            {
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            },
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          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
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        "name": "org.bouncycastle:bcprov-jdk14"
      },
      "ranges": [
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            {
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            {
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            }
          ],
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        }
      ]
    },
    {
      "package": {
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      },
      "ranges": [
        {
          "events": [
            {
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            },
            {
              "fixed": "1.66"
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          "type": "ECOSYSTEM"
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            {
              "introduced": "0"
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          "type": "ECOSYSTEM"
        }
      ]
    },
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      },
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        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.66"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "BouncyCastle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-15522"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203",
      "CWE-362"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-21T17:50:36Z",
    "nvd_published_at": "2021-05-20T12:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.2.1, BC before 1.66, BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures.",
  "id": "GHSA-6xx3-rg99-gc3p",
  "modified": "2021-05-21T17:50:36Z",
  "published": "2021-08-13T15:22:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15522"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bcgit/bc-java/wiki/CVE-2020-15522"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210622-0007"
    },
    {
      "type": "WEB",
      "url": "https://www.bouncycastle.org/releasenotes.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Timing based private key exposure in Bouncy Castle"
}

cve-2020-15522

Vulnerability from cvelistv5

Published

2021-05-20 11:20

Modified

2024-08-04 13:15

Severity ?

Summary

Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures.

References

▼	URL	Tags
	https://www.bouncycastle.org/releasenotes.html	x_refsource_MISC
	https://github.com/bcgit/bc-java/wiki/CVE-2020-15522	x_refsource_MISC
	https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20210622-0007/	x_refsource_CONFIRM

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

To clipboard

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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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