Vulnerability-Lookup

OESA-2024-1698 (CVE-2024-4741)

Vulnerability from osv_openeuler – Published: 2024-06-07 11:07 – Updated: 2026-08-06 11:07 – Source website

Summary

openssl security update

Details

The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, fully featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library. The project is managed by a worldwide community of volunteers that use the Internet to communicate, plan, and develop the OpenSSL tookit and its related documentation.

Security Fix(es):

A use-after-free vulnerability was found in OpenSSL. Calling the OpenSSL API SSL_free_buffers function may cause memory to be accessed that was previously freed in some situations.(CVE-2024-4741)

Severity

9.8 (Critical)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2024-4741	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "openssl-debuginfo-1.1.1m-36.oe2203sp1.aarch64.rpm",
          "openssl-1.1.1m-36.oe2203sp1.aarch64.rpm",
          "openssl-perl-1.1.1m-36.oe2203sp1.aarch64.rpm",
          "openssl-libs-1.1.1m-36.oe2203sp1.aarch64.rpm",
          "openssl-devel-1.1.1m-36.oe2203sp1.aarch64.rpm",
          "openssl-debugsource-1.1.1m-36.oe2203sp1.aarch64.rpm"
        ],
        "noarch": [
          "openssl-help-1.1.1m-36.oe2203sp1.noarch.rpm"
        ],
        "src": [
          "openssl-1.1.1m-36.oe2203sp1.src.rpm"
        ],
        "x86_64": [
          "openssl-libs-1.1.1m-36.oe2203sp1.x86_64.rpm",
          "openssl-devel-1.1.1m-36.oe2203sp1.x86_64.rpm",
          "openssl-debuginfo-1.1.1m-36.oe2203sp1.x86_64.rpm",
          "openssl-1.1.1m-36.oe2203sp1.x86_64.rpm",
          "openssl-perl-1.1.1m-36.oe2203sp1.x86_64.rpm",
          "openssl-debugsource-1.1.1m-36.oe2203sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP1",
        "name": "openssl",
        "purl": "pkg:rpm/openEuler/openssl\u0026distro=openEuler-22.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.1m-36.oe2203sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Critical"
  },
  "details": "The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, fully featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library. The project is managed by a worldwide community of volunteers that use the Internet to communicate, plan, and develop the OpenSSL tookit and its related documentation.\r\n\r\nSecurity Fix(es):\r\n\r\nA use-after-free vulnerability was found in OpenSSL. Calling the OpenSSL API SSL_free_buffers function may cause memory to be accessed that was previously freed in some situations.(CVE-2024-4741)",
  "id": "OESA-2024-1698",
  "modified": "2026-08-06T11:07:09Z",
  "published": "2024-06-07T11:07:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1698"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-4741"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "openssl security update",
  "upstream": [
    "CVE-2024-4741"
  ]
}

CVE-2024-4741 (GCVE-0-2024-4741)

Vulnerability from cvelistv5 – Published: 2024-11-13 10:20 – Updated: 2025-11-04 17:26

Title

Use After Free with SSL_free_buffers

Summary

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.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-13 14:45 UTC

CWE

CWE-416 - Use After Free

Assigner

openssl mitre root

References

9 references

URL	Tags
https://www.openssl.org/news/secadv/20240528.txt	vendor-advisory
https://github.com/openssl/openssl/commit/e509313…	patch
https://github.com/openssl/openssl/commit/c88c3de…	patch
https://github.com/openssl/openssl/commit/704f725…	patch
https://github.com/openssl/openssl/commit/b3f0eb0…	patch
https://github.openssl.org/openssl/extended-relea…	patch
https://lists.debian.org/debian-lts-announce/2024…
https://lists.debian.org/debian-lts-announce/2024…
https://security.netapp.com/advisory/ntap-2024062…

Impacted products

2 products

Vendor	Product	Version
OpenSSL	OpenSSL	Affected: 3.3.0 , < 3.3.1 (semver) Affected: 3.2.0 , < 3.2.2 (semver) Affected: 3.1.0 , < 3.1.6 (semver) Affected: 3.0.0 , < 3.0.14 (semver) Affected: 1.1.1 , < 1.1.1y (custom)
openssl	openssl	Affected: 1.1.1 , < 1.1.1y (semver) Affected: 3.0.0 , < 3.0.14 (semver) Affected: 3.1.0 , < 3.1.6 (semver) Affected: 3.2.0 , < 3.2.2 (semver) Affected: 3.3.0 , < 3.3.1 (semver) cpe:2.3:a:openssl:openssl:-:::::::*

Date Public

2024-05-27 23:00

Credits

William Ahern (Akamai) Matt Caswell Watson Ladd (Akamai)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:openssl:openssl:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "openssl",
            "vendor": "openssl",
            "versions": [
              {
                "lessThan": "1.1.1y",
                "status": "affected",
                "version": "1.1.1",
                "versionType": "semver"
              },
              {
                "lessThan": "3.0.14",
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                "version": "3.0.0",
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                "lessThan": "3.1.6",
                "status": "affected",
                "version": "3.1.0",
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                "status": "affected",
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              },
              {
                "lessThan": "3.3.1",
                "status": "affected",
                "version": "3.3.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "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"
              },
              "type": "ssvc"
            }
          }
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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"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T17:26:59.261Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
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            "url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00000.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00033.html"
          },
          {
            "url": "https://security.netapp.com/advisory/ntap-20240621-0004/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "OpenSSL",
          "vendor": "OpenSSL",
          "versions": [
            {
              "lessThan": "3.3.1",
              "status": "affected",
              "version": "3.3.0",
              "versionType": "semver"
            },
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              "lessThan": "3.2.2",
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              "versionType": "semver"
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      "credits": [
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          "type": "finder",
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        {
          "lang": "en",
          "type": "remediation developer",
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        }
      ],
      "datePublic": "2024-05-27T23:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "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",
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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