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CVE-2023-28319 (GCVE-0-2023-28319)

Vulnerability from cvelistv5 – Published: 2023-05-26 00:00 – Updated: 2025-01-15 16:00
VLAI
Summary
A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-15 15:59 UTC
CWE
  • CWE-416 - Use After Free (CWE-416)
Assigner
References
Impacted products
Vendor Product Version CPE status
n/a https://github.com/curl/curl Affected: Fixed in 8.1.0
Show details on NVD website
To clipboard 

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                "tags": [
                  "x_transferred"
                ],
                "url": "https://support.apple.com/kb/HT213843"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://support.apple.com/kb/HT213844"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://support.apple.com/kb/HT213845"
              },
              {
                "name": "20230725 APPLE-SA-2023-07-24-6 macOS Big Sur 11.7.9",
                "tags": [
                  "mailing-list",
                  "x_transferred"
                ],
                "url": "http://seclists.org/fulldisclosure/2023/Jul/52"
              },
              {
                "name": "20230725 APPLE-SA-2023-07-24-5 macOS Monterey 12.6.8",
                "tags": [
                  "mailing-list",
                  "x_transferred"
                ],
                "url": "http://seclists.org/fulldisclosure/2023/Jul/48"
              },
              {
                "name": "20230725 APPLE-SA-2023-07-24-4 macOS Ventura 13.5",
                "tags": [
                  "mailing-list",
                  "x_transferred"
                ],
                "url": "http://seclists.org/fulldisclosure/2023/Jul/47"
              },
              {
                "name": "GLSA-202310-12",
                "tags": [
                  "vendor-advisory",
                  "x_transferred"
                ],
                "url": "https://security.gentoo.org/glsa/202310-12"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "NONE",
                  "baseScore": 7.5,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-28319",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-01-15T15:59:44.698453Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-01-15T16:00:04.674Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "https://github.com/curl/curl",
              "vendor": "n/a",
              "versions": [
                {
                  "status": "affected",
                  "version": "Fixed in 8.1.0"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "A use after free vulnerability exists in curl \u003cv8.1.0 in the way libcurl offers a feature to verify an SSH server\u0027s public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-416",
                  "description": "Use After Free (CWE-416)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2023-10-11T10:06:29.880Z",
            "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
            "shortName": "hackerone"
          },
          "references": [
            {
              "url": "https://hackerone.com/reports/1913733"
            },
            {
              "url": "https://security.netapp.com/advisory/ntap-20230609-0009/"
            },
            {
              "url": "https://support.apple.com/kb/HT213843"
            },
            {
              "url": "https://support.apple.com/kb/HT213844"
            },
            {
              "url": "https://support.apple.com/kb/HT213845"
            },
            {
              "name": "20230725 APPLE-SA-2023-07-24-6 macOS Big Sur 11.7.9",
              "tags": [
                "mailing-list"
              ],
              "url": "http://seclists.org/fulldisclosure/2023/Jul/52"
            },
            {
              "name": "20230725 APPLE-SA-2023-07-24-5 macOS Monterey 12.6.8",
              "tags": [
                "mailing-list"
              ],
              "url": "http://seclists.org/fulldisclosure/2023/Jul/48"
            },
            {
              "name": "20230725 APPLE-SA-2023-07-24-4 macOS Ventura 13.5",
              "tags": [
                "mailing-list"
              ],
              "url": "http://seclists.org/fulldisclosure/2023/Jul/47"
            },
            {
              "name": "GLSA-202310-12",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://security.gentoo.org/glsa/202310-12"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "assignerShortName": "hackerone",
        "cveId": "CVE-2023-28319",
        "datePublished": "2023-05-26T00:00:00.000Z",
        "dateReserved": "2023-03-14T00:00:00.000Z",
        "dateUpdated": "2025-01-15T16:00:16.843Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.


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.