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

Vulnerability from cvelistv5 – Published: 2024-11-13 10:20 – Updated: 2025-11-04 17:26
VLAI?
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 ?
No CVSS data available.
CWE
Assigner
References
Impacted 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)
Create a notification for this product.
Date Public ?
2024-05-27 23:00
Credits
William Ahern (Akamai) Matt Caswell Watson Ladd (Akamai)
Show details on NVD website
To clipboard 

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      "id": "CVE-2024-4741",
      "lastModified": "2024-11-13T17:01:16.850",
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      "published": "2024-11-13T11:15:04.480",
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Nuevamente, una llamada a SSL_free_buffers tendr\u00e1 \u00e9xito aunque el b\u00fafer a\u00fan est\u00e9 en uso. Si bien estos escenarios podr\u00edan ocurrir accidentalmente durante el funcionamiento normal, un atacante malintencionado podr\u00eda intentar crear una situaci\u00f3n en la que esto ocurra. No tenemos conocimiento de que este problema se est\u00e9 explotando activamente. Los m\u00f3dulos FIPS en 3.3, 3.2, 3.1 y 3.0 no se ven afectados por este problema.\"}],\"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\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"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\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/10/msg00033.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/11/msg00000.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20240621-0004/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"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/\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-04T17:26:59.261Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-4741\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-13T14:45:07.092438Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:openssl:openssl:-:*:*:*:*:*:*:*\"], \"vendor\": \"openssl\", \"product\": \"openssl\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.1.1\", \"lessThan\": \"1.1.1y\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.0.0\", \"lessThan\": \"3.0.14\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.1.0\", \"lessThan\": \"3.1.6\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.2.0\", \"lessThan\": \"3.2.2\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.3.0\", \"lessThan\": \"3.3.1\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unknown\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-13T14:48:43.735Z\"}}], \"cna\": {\"title\": \"Use After Free with SSL_free_buffers\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"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)\"}], \"metrics\": [{\"other\": {\"type\": \"https://www.openssl.org/policies/secpolicy.html\", \"content\": {\"text\": \"Low\"}}, \"format\": \"other\"}], \"affected\": [{\"vendor\": \"OpenSSL\", \"product\": \"OpenSSL\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.3.0\", \"lessThan\": \"3.3.1\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.2.0\", \"lessThan\": \"3.2.2\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.1.0\", \"lessThan\": \"3.1.6\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.0.0\", \"lessThan\": \"3.0.14\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"1.1.1\", \"lessThan\": \"1.1.1y\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2024-05-27T23:00:00.000Z\", \"references\": [{\"url\": \"https://www.openssl.org/news/secadv/20240528.txt\", \"name\": \"OpenSSL Advisory\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://github.com/openssl/openssl/commit/e5093133c35ca82874ad83697af76f4b0f7e3bd8\", \"name\": \"3.3.1 git commit\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/openssl/openssl/commit/c88c3de51020c37e8706bf7a682a162593053aac\", \"name\": \"3.2.2 git commit\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/openssl/openssl/commit/704f725b96aa373ee45ecfb23f6abfe8be8d9177\", \"name\": \"3.1.6 git commit\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/openssl/openssl/commit/b3f0eb0a295f58f16ba43ba99dad70d4ee5c437d\", \"name\": \"3.0.14 git commit\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.openssl.org/openssl/extended-releases/commit/f7a045f3143fc6da2ee66bf52d8df04829590dd4\", \"name\": \"1.1.1y git commit\", \"tags\": [\"patch\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.2.0\"}, \"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.\", \"supportingMedia\": [{\"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.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"3a12439a-ef3a-4c79-92e6-6081a721f1e5\", \"shortName\": \"openssl\", \"dateUpdated\": \"2024-11-13T10:20:50.711Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-4741\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-04T17:26:59.261Z\", \"dateReserved\": \"2024-05-10T09:56:11.310Z\", \"assignerOrgId\": \"3a12439a-ef3a-4c79-92e6-6081a721f1e5\", \"datePublished\": \"2024-11-13T10:20:50.711Z\", \"assignerShortName\": \"openssl\"}",
      "dataType": "CVE_RECORD",
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    }
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}