cve-2024-4741
Vulnerability from cvelistv5
Published
2024-11-13 10:20
Modified
2024-11-13 14:49
Severity ?
Summary
Use After Free with SSL_free_buffers
References
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/704f725b96aa373ee45ecfb23f6abfe8be8d9177
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/b3f0eb0a295f58f16ba43ba99dad70d4ee5c437d
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/c88c3de51020c37e8706bf7a682a162593053aac
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/e5093133c35ca82874ad83697af76f4b0f7e3bd8
openssl-security@openssl.orghttps://github.openssl.org/openssl/extended-releases/commit/f7a045f3143fc6da2ee66bf52d8df04829590dd4
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20240528.txt
Impacted products
OpenSSLOpenSSL
Show details on NVD website

To clipboard 

{
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        "affected": [
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            "cpes": [
              "cpe:2.3:a:openssl:openssl:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
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            "vendor": "openssl",
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                "status": "affected",
                "version": "1.1.1",
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                "status": "affected",
                "version": "3.1.0",
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                "status": "affected",
                "version": "3.2.0",
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              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "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:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-4741",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-13T14:45:07.092438Z",
                "version": "2.0.3"
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              "type": "ssvc"
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          }
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        "providerMetadata": {
          "dateUpdated": "2024-11-13T14:49:05.977Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "OpenSSL",
          "vendor": "OpenSSL",
          "versions": [
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              "lessThan": "3.3.1",
              "status": "affected",
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              "status": "affected",
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              "lessThan": "1.1.1y",
              "status": "affected",
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              "versionType": "custom"
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        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "William Ahern (Akamai)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Matt Caswell"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Watson Ladd (Akamai)"
        }
      ],
      "datePublic": "2024-05-27T23:00:00.000Z",
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
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              "type": "text/html",
              "value": "Issue summary: Calling the OpenSSL API function SSL_free_buffers may cause\u003cbr\u003ememory to be accessed that was previously freed in some situations\u003cbr\u003e\u003cbr\u003eImpact summary: A use after free can have a range of potential consequences such\u003cbr\u003eas the corruption of valid data, crashes or execution of arbitrary code.\u003cbr\u003eHowever, only applications that directly call the SSL_free_buffers function are\u003cbr\u003eaffected by this issue. Applications that do not call this function are not\u003cbr\u003evulnerable. Our investigations indicate that this function is rarely used by\u003cbr\u003eapplications.\u003cbr\u003e\u003cbr\u003eThe SSL_free_buffers function is used to free the internal OpenSSL buffer used\u003cbr\u003ewhen processing an incoming record from the network. The call is only expected\u003cbr\u003eto succeed if the buffer is not currently in use. However, two scenarios have\u003cbr\u003ebeen identified where the buffer is freed even when still in use.\u003cbr\u003e\u003cbr\u003eThe first scenario occurs where a record header has been received from the\u003cbr\u003enetwork and processed by OpenSSL, but the full record body has not yet arrived.\u003cbr\u003eIn this case calling SSL_free_buffers will succeed even though a record has only\u003cbr\u003ebeen partially processed and the buffer is still in use.\u003cbr\u003e\u003cbr\u003eThe second scenario occurs where a full record containing application data has\u003cbr\u003ebeen received and processed by OpenSSL but the application has only read part of\u003cbr\u003ethis data. Again a call to SSL_free_buffers will succeed even though the buffer\u003cbr\u003eis still in use.\u003cbr\u003e\u003cbr\u003eWhile these scenarios could occur accidentally during normal operation a\u003cbr\u003emalicious attacker could attempt to engineer a stituation where this occurs.\u003cbr\u003eWe are not aware of this issue being actively exploited.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue."
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        }
      ],
      "metrics": [
        {
          "format": "other",
          "other": {
            "content": {
              "text": "Low"
            },
            "type": "https://www.openssl.org/policies/secpolicy.html"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416 Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-13T10:20:50.711Z",
        "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
        "shortName": "openssl"
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      "references": [
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          "name": "OpenSSL Advisory",
          "tags": [
            "vendor-advisory"
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          "url": "https://www.openssl.org/news/secadv/20240528.txt"
        },
        {
          "name": "3.3.1 git commit",
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            "patch"
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          "tags": [
            "patch"
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        },
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          "tags": [
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        },
        {
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          "tags": [
            "patch"
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          "tags": [
            "patch"
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          "url": "https://github.openssl.org/openssl/extended-releases/commit/f7a045f3143fc6da2ee66bf52d8df04829590dd4"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Use After Free with SSL_free_buffers",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
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  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2024-4741",
    "datePublished": "2024-11-13T10:20:50.711Z",
    "dateReserved": "2024-05-10T09:56:11.310Z",
    "dateUpdated": "2024-11-13T14:49:05.977Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-4741\",\"sourceIdentifier\":\"openssl-security@openssl.org\",\"published\":\"2024-11-13T11:15:04.480\",\"lastModified\":\"2024-11-13T17:01:16.850\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Issue summary: Calling the OpenSSL API function SSL_free_buffers may cause\\nmemory to be accessed that was previously freed in some situations\\n\\nImpact summary: A use after free can have a range of potential consequences such\\nas the corruption of valid data, crashes or execution of arbitrary code.\\nHowever, only applications that directly call the SSL_free_buffers function are\\naffected by this issue. Applications that do not call this function are not\\nvulnerable. Our investigations indicate that this function is rarely used by\\napplications.\\n\\nThe SSL_free_buffers function is used to free the internal OpenSSL buffer used\\nwhen processing an incoming record from the network. The call is only expected\\nto succeed if the buffer is not currently in use. However, two scenarios have\\nbeen identified where the buffer is freed even when still in use.\\n\\nThe first scenario occurs where a record header has been received from the\\nnetwork and processed by OpenSSL, but the full record body has not yet arrived.\\nIn this case calling SSL_free_buffers will succeed even though a record has only\\nbeen partially processed and the buffer is still in use.\\n\\nThe second scenario occurs where a full record containing application data has\\nbeen received and processed by OpenSSL but the application has only read part of\\nthis data. Again a call to SSL_free_buffers will succeed even though the buffer\\nis still in use.\\n\\nWhile these scenarios could occur accidentally during normal operation a\\nmalicious attacker could attempt to engineer a stituation where this occurs.\\nWe are not aware of this issue being actively exploited.\\n\\nThe FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"openssl-security@openssl.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"references\":[{\"url\":\"https://github.com/openssl/openssl/commit/704f725b96aa373ee45ecfb23f6abfe8be8d9177\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://github.com/openssl/openssl/commit/b3f0eb0a295f58f16ba43ba99dad70d4ee5c437d\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://github.com/openssl/openssl/commit/c88c3de51020c37e8706bf7a682a162593053aac\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://github.com/openssl/openssl/commit/e5093133c35ca82874ad83697af76f4b0f7e3bd8\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://github.openssl.org/openssl/extended-releases/commit/f7a045f3143fc6da2ee66bf52d8df04829590dd4\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://www.openssl.org/news/secadv/20240528.txt\",\"source\":\"openssl-security@openssl.org\"}]}}"
  }
}


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