CVE-2022-23001 (GCVE-0-2022-23001)

Vulnerability from cvelistv5 – Published: 2022-07-29 18:51 – Updated: 2024-08-03 03:28
VLAI
Title
Sweet-B Library: Point compress/decompress using the wrong bit for sign
Summary
When compressing or decompressing elliptic curve points using the Sweet B library, an incorrect choice of sign bit is used. An attacker with user level privileges and no other user's assistance can exploit this vulnerability with only knowledge of the public key and the library. The resulting output may cause an error when used in other operations; for instance, verification of a valid signature under a decompressed public key may fail. This may be leveraged by an attacker to cause an error scenario in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
Assigner
WDC PSIRT CNA
CNA scorecard – unranked: 0 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
Western Digital Sweet B Library Affected: Sweet B Library , < v2 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T03:28:42.996Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.westerndigital.com/support/product-security/wdc-22013-sweet-b-incorrect-output-vulnerabilities"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Sweet B Library",
          "vendor": "Western Digital",
          "versions": [
            {
              "lessThan": "v2",
              "status": "affected",
              "version": "Sweet B Library",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When compressing or decompressing elliptic curve points using the Sweet B library, an incorrect choice of sign bit is used. An attacker with user level privileges and no other user\u0027s assistance can exploit this vulnerability with only knowledge of the public key and the library. The resulting output may cause an error when used in other operations; for instance, verification of a valid signature under a decompressed public key may fail. This may be leveraged by an attacker to cause an error scenario in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-682",
              "description": "CWE-682 Incorrect Calculation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-07-29T18:51:26.000Z",
        "orgId": "cb3b742e-5145-4748-b44b-5ffd45bf3b6a",
        "shortName": "WDC PSIRT"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.westerndigital.com/support/product-security/wdc-22013-sweet-b-incorrect-output-vulnerabilities"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "The vulnerability was addressed by correcting the choice of sign bit in the affected routines. To get the latest version of the Sweet B library, update your local repository from https://github.com/westerndigitalcorporation/sweet-b"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Sweet-B Library: Point compress/decompress using the wrong bit for sign",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@wdc.com",
          "ID": "CVE-2022-23001",
          "STATE": "PUBLIC",
          "TITLE": "Sweet-B Library: Point compress/decompress using the wrong bit for sign"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Sweet B Library",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "Sweet B Library",
                            "version_value": "v2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Western Digital"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "When compressing or decompressing elliptic curve points using the Sweet B library, an incorrect choice of sign bit is used. An attacker with user level privileges and no other user\u0027s assistance can exploit this vulnerability with only knowledge of the public key and the library. The resulting output may cause an error when used in other operations; for instance, verification of a valid signature under a decompressed public key may fail. This may be leveraged by an attacker to cause an error scenario in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-682 Incorrect Calculation"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.westerndigital.com/support/product-security/wdc-22013-sweet-b-incorrect-output-vulnerabilities",
              "refsource": "MISC",
              "url": "https://www.westerndigital.com/support/product-security/wdc-22013-sweet-b-incorrect-output-vulnerabilities"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "The vulnerability was addressed by correcting the choice of sign bit in the affected routines. To get the latest version of the Sweet B library, update your local repository from https://github.com/westerndigitalcorporation/sweet-b"
          }
        ],
        "source": {
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cb3b742e-5145-4748-b44b-5ffd45bf3b6a",
    "assignerShortName": "WDC PSIRT",
    "cveId": "CVE-2022-23001",
    "datePublished": "2022-07-29T18:51:26.000Z",
    "dateReserved": "2022-01-10T00:00:00.000Z",
    "dateUpdated": "2024-08-03T03:28:42.996Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-23001",
      "date": "2026-11-14",
      "epss": "0.0072",
      "percentile": "0.545"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "Sweet B Library",
                "vendor": "Western Digital",
                "versions": [
                  {
                    "lessThan": "v2",
                    "status": "affected",
                    "version": "Sweet B Library",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "psirt@wdc.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:westerndigital:sweet_b:1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "BD0868BB-4143-41EC-9A15-C16C98EF851C",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "When compressing or decompressing elliptic curve points using the Sweet B library, an incorrect choice of sign bit is used. An attacker with user level privileges and no other user\u0027s assistance can exploit this vulnerability with only knowledge of the public key and the library. The resulting output may cause an error when used in other operations; for instance, verification of a valid signature under a decompressed public key may fail. This may be leveraged by an attacker to cause an error scenario in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components."
          },
          {
            "lang": "es",
            "value": "Cuando son comprimidos o descomprimidos puntos de curvas el\u00edpticas usando la biblioteca Sweet B, es usada una elecci\u00f3n incorrecta del bit de signo. Un atacante con privilegios de nivel de usuario y sin ayuda de otros usuarios puede explotar esta vulnerabilidad con s\u00f3lo conocer la clave p\u00fablica y la biblioteca. La salida resultante puede causar un error cuando es usada en otras operaciones; por ejemplo, la verificaci\u00f3n de una firma v\u00e1lida bajo una clave p\u00fablica descomprimida puede fallar. Esto puede ser aprovechado por un atacante para causar un escenario de error en las aplicaciones que usan la biblioteca, resultando en una denegaci\u00f3n de servicio limitada para un usuario individual. El alcance del impacto no puede extenderse a otros componentes"
          }
        ],
        "id": "CVE-2022-23001",
        "lastModified": "2026-06-17T04:29:19.690",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "psirt@wdc.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2022-07-29T19:15:08.123",
        "references": [
          {
            "source": "psirt@wdc.com",
            "tags": [
              "Product",
              "Vendor Advisory"
            ],
            "url": "https://www.westerndigital.com/support/product-security/wdc-22013-sweet-b-incorrect-output-vulnerabilities"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Product",
              "Vendor Advisory"
            ],
            "url": "https://www.westerndigital.com/support/product-security/wdc-22013-sweet-b-incorrect-output-vulnerabilities"
          }
        ],
        "sourceIdentifier": "psirt@wdc.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-682"
              }
            ],
            "source": "psirt@wdc.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-682"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T12:49:35+00:00",
      "cve": "CVE-2022-23001",
      "id": "CVE-2022-23001",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Sweet-B Library: Point compress/decompress using the wrong bit for sign",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-23001.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.