CVE-2024-0727
PKCS12 Decoding crashes
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
Resumen del problema: el procesamiento de un archivo PKCS12 con formato malintencionado puede hacer que OpenSSL falle y provoque un posible ataque de denegación 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 especificación 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 aplicación procesa archivos PKCS12 de una fuente que no es de confianza utilizando las API de OpenSSL, esa aplicación será 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(). También solucionamos un problema similar en SMIME_write_PKCS7(). Sin embargo, dado que esta función está relacionada con la escritura de datos, no la consideramos importante para la seguridad. Los módulos FIPS en 3.2, 3.1 y 3.0 no se ven afectados por este problema.
A flaw was found in OpenSSL. The optional ContentInfo fields can be set to null, even if the "type" is a valid value, which can lead to a null dereference error that may cause a denial of service.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2024-01-19 CVE Reserved
- 2024-01-25 CVE Published
- 2024-02-03 EPSS Updated
- 2024-10-14 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (10)
URL | Tag | Source |
---|---|---|
http://www.openwall.com/lists/oss-security/2024/03/11/1 | ||
https://security.netapp.com/advisory/ntap-20240208-0006 |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
https://www.openssl.org/news/secadv/20240125.txt | 2024-05-01 | |
https://access.redhat.com/security/cve/CVE-2024-0727 | 2024-04-30 | |
https://bugzilla.redhat.com/show_bug.cgi?id=2259944 | 2024-04-30 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 1.0.2 < 1.0.2zj Search vendor "Openssl" for product "Openssl" and version " >= 1.0.2 < 1.0.2zj" | - |
Affected
| ||||||
Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 1.1.1 < 1.1.1x Search vendor "Openssl" for product "Openssl" and version " >= 1.1.1 < 1.1.1x" | - |
Affected
| ||||||
Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 3.0.0 < 3.0.13 Search vendor "Openssl" for product "Openssl" and version " >= 3.0.0 < 3.0.13" | - |
Affected
| ||||||
Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 3.1.0 < 3.1.5 Search vendor "Openssl" for product "Openssl" and version " >= 3.1.0 < 3.1.5" | - |
Affected
| ||||||
Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | 3.2.0 Search vendor "Openssl" for product "Openssl" and version "3.2.0" | - |
Affected
|