github - ghsa-6vgq-8qjq-h578

ghsa-6vgq-8qjq-h578

Vulnerability from github

Published

2024-11-13 12:32

Modified

2024-11-13 18:32

Severity ?

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

Details

Issue summary: Calling the OpenSSL API function SSL_free_buffers may cause memory to be accessed that was previously freed in some situations

Impact summary: A use after free can have a range of potential consequences such as the corruption of valid data, crashes or execution of arbitrary code. However, only applications that directly call the SSL_free_buffers function are affected by this issue. Applications that do not call this function are not vulnerable. Our investigations indicate that this function is rarely used by applications.

The SSL_free_buffers function is used to free the internal OpenSSL buffer used when processing an incoming record from the network. The call is only expected to succeed if the buffer is not currently in use. However, two scenarios have been identified where the buffer is freed even when still in use.

The first scenario occurs where a record header has been received from the network and processed by OpenSSL, but the full record body has not yet arrived. In this case calling SSL_free_buffers will succeed even though a record has only been partially processed and the buffer is still in use.

The second scenario occurs where a full record containing application data has been received and processed by OpenSSL but the application has only read part of this data. Again a call to SSL_free_buffers will succeed even though the buffer is still in use.

While these scenarios could occur accidentally during normal operation a malicious attacker could attempt to engineer a stituation where this occurs. We are not aware of this issue being actively exploited.

The FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-4741"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-13T11:15:04Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-6vgq-8qjq-h578",
  "modified": "2024-11-13T18:32:00Z",
  "published": "2024-11-13T12:32:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-4741"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/704f725b96aa373ee45ecfb23f6abfe8be8d9177"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/b3f0eb0a295f58f16ba43ba99dad70d4ee5c437d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/c88c3de51020c37e8706bf7a682a162593053aac"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/e5093133c35ca82874ad83697af76f4b0f7e3bd8"
    },
    {
      "type": "WEB",
      "url": "https://github.openssl.org/openssl/extended-releases/commit/f7a045f3143fc6da2ee66bf52d8df04829590dd4"
    },
    {
      "type": "WEB",
      "url": "https://www.openssl.org/news/secadv/20240528.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

▼	URL	Tags
	https://www.openssl.org/news/secadv/20240528.txt	vendor-advisory
	https://github.com/openssl/openssl/commit/e5093133c35ca82874ad83697af76f4b0f7e3bd8	patch
	https://github.com/openssl/openssl/commit/c88c3de51020c37e8706bf7a682a162593053aac	patch
	https://github.com/openssl/openssl/commit/704f725b96aa373ee45ecfb23f6abfe8be8d9177	patch
	https://github.com/openssl/openssl/commit/b3f0eb0a295f58f16ba43ba99dad70d4ee5c437d	patch
	https://github.openssl.org/openssl/extended-releases/commit/f7a045f3143fc6da2ee66bf52d8df04829590dd4	patch

Impacted products

▼	Vendor	Product
	OpenSSL	OpenSSL

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "affected": [
          {
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              "cpe:2.3:a:openssl:openssl:-:*:*:*:*:*:*:*"
            ],
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                "version": "3.0.0",
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                "lessThan": "3.1.6",
                "status": "affected",
                "version": "3.1.0",
                "versionType": "semver"
              },
              {
                "lessThan": "3.2.2",
                "status": "affected",
                "version": "3.2.0",
                "versionType": "semver"
              },
              {
                "lessThan": "3.3.1",
                "status": "affected",
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              }
            ]
          }
        ],
        "metrics": [
          {
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              "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",
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            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-4741",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                  },
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                "role": "CISA Coordinator",
                "timestamp": "2024-11-13T14:45:07.092438Z",
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              },
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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    "cna": {
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          "vendor": "OpenSSL",
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              "status": "affected",
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              "versionType": "semver"
            },
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      "credits": [
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          "type": "finder",
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        {
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          "type": "remediation developer",
          "value": "Watson Ladd (Akamai)"
        }
      ],
      "datePublic": "2024-05-27T23:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
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        }
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      "metrics": [
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          "format": "other",
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            "content": {
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      "source": {
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    "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",
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}

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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