github - ghsa-33qr-2xwr-95pw

ghsa-33qr-2xwr-95pw

Vulnerability from github

Published

2023-12-05 18:30

Modified

2023-12-12 18:31

Severity ?

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

Details

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant time RSA implementation, which we do not believe exhibits any timing side channels.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-45287"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-12-05T17:15:08Z",
    "severity": "HIGH"
  },
  "details": "Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant time RSA implementation, which we do not believe exhibits any timing side channels.",
  "id": "GHSA-33qr-2xwr-95pw",
  "modified": "2023-12-12T18:31:30Z",
  "published": "2023-12-05T18:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45287"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/cl/326012/26"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/issue/20654"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/golang-announce/c/QMK8IQALDvA"
    },
    {
      "type": "WEB",
      "url": "https://people.redhat.com/~hkario/marvin"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2023-2375"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20240112-0005"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2023-45287

Vulnerability from cvelistv5

Published

2023-12-05 16:18

Modified

2024-08-02 20:21

Severity ?

Summary

Before Go 1.20, the RSA based key exchange methods in crypto/tls may exhibit a timing side channel

References

▼	URL	Tags
	https://go.dev/issue/20654
	https://go.dev/cl/326012/26
	https://groups.google.com/g/golang-announce/c/QMK8IQALDvA
	https://people.redhat.com/~hkario/marvin/
	https://pkg.go.dev/vuln/GO-2023-2375
	https://security.netapp.com/advisory/ntap-20240112-0005/

Impacted products

▼	Vendor	Product
	Go standard library	crypto/tls

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T20:21:15.309Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/issue/20654"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/cl/326012/26"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://groups.google.com/g/golang-announce/c/QMK8IQALDvA"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://people.redhat.com/~hkario/marvin/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://pkg.go.dev/vuln/GO-2023-2375"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20240112-0005/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "crypto/tls",
          "product": "crypto/tls",
          "programRoutines": [
            {
              "name": "rsaKeyAgreement.processClientKeyExchange"
            },
            {
              "name": "rsaKeyAgreement.generateClientKeyExchange"
            },
            {
              "name": "Conn.Handshake"
            },
            {
              "name": "Conn.HandshakeContext"
            },
            {
              "name": "Conn.Read"
            },
            {
              "name": "Conn.Write"
            },
            {
              "name": "Dial"
            },
            {
              "name": "DialWithDialer"
            },
            {
              "name": "Dialer.Dial"
            },
            {
              "name": "Dialer.DialContext"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.20.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant time RSA implementation, which we do not believe exhibits any timing side channels."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-208: Observable Timing Discrepancy",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-12-05T16:18:06.104Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/20654"
        },
        {
          "url": "https://go.dev/cl/326012/26"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/QMK8IQALDvA"
        },
        {
          "url": "https://people.redhat.com/~hkario/marvin/"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2023-2375"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240112-0005/"
        }
      ],
      "title": "Before Go 1.20, the RSA based key exchange methods in crypto/tls may exhibit a timing side channel"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2023-45287",
    "datePublished": "2023-12-05T16:18:06.104Z",
    "dateReserved": "2023-10-06T17:06:26.221Z",
    "dateUpdated": "2024-08-02T20:21:15.309Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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