CVE-2024-0727 (GCVE-0-2024-0727)

Vulnerability from cvelistv5 – Published: 2024-01-26 08:57 – Updated: 2026-05-12 11:26
VLAI
Title
PKCS12 Decoding crashes
Summary
Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack Impact summary: Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly. A file in PKCS12 format can contain certificates and keys and may come from an untrusted source. The PKCS12 specification allows certain fields to be NULL, but OpenSSL does not correctly check for this case. This can lead to a NULL pointer dereference that results in OpenSSL crashing. If an application processes PKCS12 files from an untrusted source using the OpenSSL APIs then that application will be vulnerable to this issue. OpenSSL APIs that are vulnerable to this are: PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() and PKCS12_newpass(). We have also fixed a similar issue in SMIME_write_PKCS7(). However since this function is related to writing data we do not consider it security significant. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
OpenSSL OpenSSL Affected: 3.2.0 , < 3.2.1 (semver)
Affected: 3.1.0 , < 3.1.5 (semver)
Affected: 3.0.0 , < 3.0.13 (semver)
Affected: 1.1.1 , < 1.1.1x (custom)
Affected: 1.0.2 , < 1.0.2zj (custom)
Create a notification for this product.
Siemens SIDIS Prime Affected: 0 , < V4.0.700 (custom)
Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
Create a notification for this product.
Siemens SINEC NMS Affected: 0 , < V3.0 SP1 (custom)
Create a notification for this product.
Date Public
2024-01-25 00:00
Credits
Bahaa Naamneh (Crosspoint Labs) Matt Caswell
Show details on NVD website
To clipboard 

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If an application processes PKCS12\\nfiles from an untrusted source using the OpenSSL APIs then that application will\\nbe vulnerable to this issue.\\n\\nOpenSSL APIs that are vulnerable to this are: PKCS12_parse(),\\nPKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes()\\nand PKCS12_newpass().\\n\\nWe have also fixed a similar issue in SMIME_write_PKCS7(). However since this\\nfunction is related to writing data we do not consider it security significant.\\n\\nThe FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue.\"},{\"lang\":\"es\",\"value\":\"Resumen del problema: el procesamiento de un archivo PKCS12 con formato malintencionado puede hacer que OpenSSL falle y provoque un posible ataque de denegaci\u00f3n de servicio. Resumen de impacto: las aplicaciones que cargan archivos en formato PKCS12 desde fuentes que no son de confianza pueden finalizar abruptamente. Un archivo en formato PKCS12 puede contener certificados y claves y puede provenir de una fuente que no es de confianza. La especificaci\u00f3n PKCS12 permite que ciertos campos sean NULL, pero OpenSSL no verifica correctamente este caso. Esto puede provocar una desreferencia del puntero NULL que provoque el bloqueo de OpenSSL. Si una aplicaci\u00f3n procesa archivos PKCS12 de una fuente que no es de confianza utilizando las API de OpenSSL, esa aplicaci\u00f3n ser\u00e1 vulnerable a este problema. Las API de OpenSSL que son vulnerables a esto son: PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() y PKCS12_newpass(). Tambi\u00e9n solucionamos un problema similar en SMIME_write_PKCS7(). Sin embargo, dado que esta funci\u00f3n est\u00e1 relacionada con la escritura de datos, no la consideramos importante para la seguridad. Los m\u00f3dulos FIPS en 3.2, 3.1 y 3.0 no se ven afectados por este 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    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2024-0727\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-12T11:26:05.375Z\", \"dateReserved\": \"2024-01-19T11:01:11.010Z\", \"assignerOrgId\": \"3a12439a-ef3a-4c79-92e6-6081a721f1e5\", \"datePublished\": \"2024-01-26T08:57:19.579Z\", \"assignerShortName\": \"openssl\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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.