CVE-2017-3732 (GCVE-0-2017-3732)

Vulnerability from cvelistv5 – Published: 2017-05-04 19:00 – Updated: 2024-09-16 22:08
VLAI
Title
BN_mod_exp may produce incorrect results on x86_64
Summary
There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL 1.0.2 before 1.0.2k and 1.1.0 before 1.1.0d. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. For example this can occur by default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very similar to CVE-2015-3193 but must be treated as a separate problem.
Severity
No CVSS data available.
CWE
  • carry-propagating bug
Assigner
References
Impacted products
Vendor Product Version CPE status
OpenSSL OpenSSL Affected: openssl-1.1.0
Affected: openssl-1.1.0a
Affected: openssl-1.1.0b
Affected: openssl-1.1.0c
Affected: openssl-1.0.2
Affected: openssl-1.0.2a
Affected: openssl-1.0.2b
Affected: openssl-1.0.2c
Affected: openssl-1.0.2d
Affected: openssl-1.0.2e
Affected: openssl-1.0.2f
Affected: openssl-1.0.2g
Affected: openssl-1.0.2h
Affected: openssl-1.0.2i
Affected: openssl-1.0.2j
guessed Create a notification for this product.
Date Public
2017-01-26 00:00
Credits
OSS-Fuzz project
Show details on NVD website
To clipboard 

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An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. For example this can occur by default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very similar to CVE-2015-3193 but must be treated as a separate problem.\"},{\"lang\":\"es\",\"value\":\"Hay un error de propagaci\u00f3n de d\u00edgito (carry propagation) en el procedimiento de elevaci\u00f3n al cuadrado de Montgomery x86_64 en OpenSSL versiones 1.0.2 anteriores a la 1.0.2k y versiones 1.1.0 anteriores a la 1.1.0d. Ning\u00fan algoritmo de curva el\u00edptica (EC) se ve afectado. El an\u00e1lisis sugiere que los ataques contra RSA y DSA que se realizan como resultado de este defecto ser\u00edan muy dif\u00edciles de realizar y no muy probables. Los ataques contra DH se consideran factibles (aunque muy dif\u00edciles) ya que la mayor\u00eda del trabajo necesario para deducir informaci\u00f3n sobre una clave privada se puede realizar sin conexi\u00f3n La cantidad de recursos requeridos para este tipo de ataque ser\u00eda muy significativa y, probablemente, solo estar\u00eda accesible para un n\u00famero limitado de atacantes. Un atacante podr\u00eda necesitar, adem\u00e1s, acceso a un sistema sin parches que utilice la clave privada del objetivo en un escenario con par\u00e1metros DH persistentes y una clave privada que se comparte entre m\u00faltiples clientes. Por ejemplo, esto puede ocurrir por defecto en las suites de cifrado SSL/TLS basadas en DHE de OpenSSL. Nota: Este problema es muy similar a CVE-2015-3193, pero debe tratarse como un problema separado.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:N/A:N\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AD3E5C1B-EC63-4214-A0BD-0B8681CE6C8B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2:beta1:*:*:*:*:*:*\",\"matchCriteriaId\":\"18797BEE-417D-4959-9AAD-C5A7C051B524\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2:beta2:*:*:*:*:*:*\",\"matchCriteriaId\":\"6FAA3C31-BD9D-45A9-A502-837FECA6D479\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2:beta3:*:*:*:*:*:*\",\"matchCriteriaId\":\"6455A421-9956-4846-AC7C-3431E0D37D23\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2a:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"60F946FD-F564-49DA-B043-5943308BA9EE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2b:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4847BCF3-EFCE-41AF-8E7D-3D51EB9DCC5B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2c:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9B89180B-FB68-4DD8-B076-16E51CC7FB91\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2d:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4C986592-4086-4A39-9767-EF34DBAA6A53\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2e:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7B23181C-03DB-4E92-B3F6-6B585B5231B4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2f:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"94D9EC1C-4843-4026-9B05-E060E9391734\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2h:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"036FB24F-7D86-4730-8BC9-722875BEC807\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.0.2i:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FDF148A3-1AA7-4F27-85AB-414C609C626F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.1.0a:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C9D7A18A-116B-4F68-BEA3-A4E9DDDA55C6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.1.0b:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CFC70262-0DCD-4B46-9C96-FD18D0207511\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:1.1.0c:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B2E07A34-08A0-4765-AF81-46A3BDC5648A\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"4.0.0\",\"versionEndIncluding\":\"4.1.2\",\"matchCriteriaId\":\"A47FC4F7-1F77-4314-B4B3-3C5D8E335379\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*\",\"versionStartIncluding\":\"4.2.0\",\"versionEndExcluding\":\"4.7.3\",\"matchCriteriaId\":\"934083EB-2961-49FF-B8D7-B870D1FA3CB8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"5.0.0\",\"versionEndIncluding\":\"5.12.0\",\"matchCriteriaId\":\"121E5D5D-B4D9-43F3-B5C9-74590192FAF1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"6.0.0\",\"versionEndIncluding\":\"6.8.1\",\"matchCriteriaId\":\"D107EC29-67E7-40C3-8E5A-324C9105C5E4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*\",\"versionStartIncluding\":\"6.9.0\",\"versionEndExcluding\":\"6.9.5\",\"matchCriteriaId\":\"14346EBC-1890-472B-B236-06FE381229EC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"7.0.0\",\"versionEndExcluding\":\"7.5.0\",\"matchCriteriaId\":\"2EE58CC5-2E12-4DA9-8AF2-9739CE393008\"}]}]}],\"references\":[{\"url\":\"http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html\",\"source\":\"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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T21:54:52+00:00",
      "cve": "CVE-2017-3732",
      "id": "CVE-2017-3732",
      "initial_release_date": "2017-01-26T00:00:00+00:00",
      "product_status:fixed": "261",
      "product_status:known_affected": "3",
      "product_status:known_not_affected": "23",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "openssl: BN_mod_exp may produce incorrect results on x86_64",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-3732.json",
      "version": "3"
    }
  }
}



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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.