cve-2023-29409
Vulnerability from cvelistv5
Published
2023-08-02 19:47
Modified
2024-10-22 14:16
Severity ?
Summary
Extremely large RSA keys in certificate chains can cause a client/server to expend significant CPU time verifying signatures. With fix, the size of RSA keys transmitted during handshakes is restricted to <= 8192 bits. Based on a survey of publicly trusted RSA keys, there are currently only three certificates in circulation with keys larger than this, and all three appear to be test certificates that are not actively deployed. It is possible there are larger keys in use in private PKIs, but we target the web PKI, so causing breakage here in the interests of increasing the default safety of users of crypto/tls seems reasonable.
References
security@golang.orghttps://go.dev/cl/515257Patch
security@golang.orghttps://go.dev/issue/61460Issue Tracking, Patch, Vendor Advisory
security@golang.orghttps://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJMailing List, Vendor Advisory
security@golang.orghttps://pkg.go.dev/vuln/GO-2023-1987Patch, Vendor Advisory
security@golang.orghttps://security.gentoo.org/glsa/202311-09
security@golang.orghttps://security.netapp.com/advisory/ntap-20230831-0010/
af854a3a-2127-422b-91ae-364da2661108https://go.dev/cl/515257Patch
af854a3a-2127-422b-91ae-364da2661108https://go.dev/issue/61460Issue Tracking, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJMailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://pkg.go.dev/vuln/GO-2023-1987Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202311-09
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230831-0010/
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T14:07:46.160Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/issue/61460"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/cl/515257"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJ"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://pkg.go.dev/vuln/GO-2023-1987"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20230831-0010/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202311-09"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-29409",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T14:15:51.334084Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-22T14:16:01.839Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "crypto/tls",
          "product": "crypto/tls",
          "programRoutines": [
            {
              "name": "Conn.verifyServerCertificate"
            },
            {
              "name": "Conn.processCertsFromClient"
            },
            {
              "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": "1.19.12",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.20.7",
              "status": "affected",
              "version": "1.20.0-0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.21.0-rc.4",
              "status": "affected",
              "version": "1.21.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Mateusz Poliwczak"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Extremely large RSA keys in certificate chains can cause a client/server to expend significant CPU time verifying signatures. With fix, the size of RSA keys transmitted during handshakes is restricted to \u003c= 8192 bits. Based on a survey of publicly trusted RSA keys, there are currently only three certificates in circulation with keys larger than this, and all three appear to be test certificates that are not actively deployed. It is possible there are larger keys in use in private PKIs, but we target the web PKI, so causing breakage here in the interests of increasing the default safety of users of crypto/tls seems reasonable."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-08-02T19:47:23.829Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/61460"
        },
        {
          "url": "https://go.dev/cl/515257"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJ"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2023-1987"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20230831-0010/"
        },
        {
          "url": "https://security.gentoo.org/glsa/202311-09"
        }
      ],
      "title": "Large RSA keys can cause high CPU usage in crypto/tls"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2023-29409",
    "datePublished": "2023-08-02T19:47:23.829Z",
    "dateReserved": "2023-04-05T19:36:35.043Z",
    "dateUpdated": "2024-10-22T14:16:01.839Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-29409\",\"sourceIdentifier\":\"security@golang.org\",\"published\":\"2023-08-02T20:15:11.940\",\"lastModified\":\"2024-11-21T07:57:00.287\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Extremely large RSA keys in certificate chains can cause a client/server to expend significant CPU time verifying signatures. With fix, the size of RSA keys transmitted during handshakes is restricted to \u003c= 8192 bits. Based on a survey of publicly trusted RSA keys, there are currently only three certificates in circulation with keys larger than this, and all three appear to be test certificates that are not actively deployed. It is possible there are larger keys in use in private PKIs, but we target the web PKI, so causing breakage here in the interests of increasing the default safety of users of crypto/tls seems reasonable.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.19.12\",\"matchCriteriaId\":\"6A0D798F-972E-4789-9E60-F04864ACC5A0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.20.0\",\"versionEndExcluding\":\"1.20.7\",\"matchCriteriaId\":\"98D9EFA9-C8A8-4C27-A1F2-DE9798D725FC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:1.21.0:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"64DE500E-0A99-4890-9D6E-0FBA9E9C3E0A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:1.21.0:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"EA9BD1EF-0172-4779-80DC-E316F5361D27\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:1.21.0:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"80DFE31C-60CD-46E2-B86A-2C8E9057AFEA\"}]}]}],\"references\":[{\"url\":\"https://go.dev/cl/515257\",\"source\":\"security@golang.org\",\"tags\":[\"Patch\"]},{\"url\":\"https://go.dev/issue/61460\",\"source\":\"security@golang.org\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJ\",\"source\":\"security@golang.org\",\"tags\":[\"Mailing List\",\"Vendor Advisory\"]},{\"url\":\"https://pkg.go.dev/vuln/GO-2023-1987\",\"source\":\"security@golang.org\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202311-09\",\"source\":\"security@golang.org\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20230831-0010/\",\"source\":\"security@golang.org\"},{\"url\":\"https://go.dev/cl/515257\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://go.dev/issue/61460\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJ\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Vendor Advisory\"]},{\"url\":\"https://pkg.go.dev/vuln/GO-2023-1987\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202311-09\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20230831-0010/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.