CVE-2022-3996
If an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively. On some operating systems (most widely: Windows) this results in a denial of service when the affected process hangs. Policy processing being enabled on a publicly facing server is not considered to be a common setup.
Policy processing is enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.
Update (31 March 2023): The description of the policy processing enablement was corrected based on CVE-2023-0466.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.26%
- Percentil entre todas las CVEs puntuadas: 69
- Fecha de la puntuación: 7/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-667
- CWE-667
Referencias
- https://github.com/openssl/openssl/commit/7725e7bfe6f2ce8146b6552b44e0d226be7638e7
- https://www.openssl.org/news/secadv/20221213.txt
- https://github.com/openssl/openssl/commit/7725e7bfe6f2ce8146b6552b44e0d226be7638e7
- https://security.netapp.com/advisory/ntap-20230203-0003/
- https://www.openssl.org/news/secadv/20221213.txt
JSON original (NVD)
Mostrar
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"value": "If an X.509 certificate contains a malformed policy constraint and\npolicy processing is enabled, then a write lock will be taken twice\nrecursively. On some operating systems (most widely: Windows) this\nresults in a denial of service when the affected process hangs. Policy\nprocessing being enabled on a publicly facing server is not considered\nto be a common setup.\n\nPolicy processing is enabled by passing the `-policy'\nargument to the command line utilities or by calling the\n`X509_VERIFY_PARAM_set1_policies()' function.\n\nUpdate (31 March 2023): The description of the policy processing enablement\nwas corrected based on CVE-2023-0466."
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}
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