CVE-2017-3736 (GCVE-0-2017-3736)

Vulnerability from cvelistv5 – Published: 2017-11-02 17:00 – Updated: 2024-09-16 20:12
VLAI
Summary
There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. 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. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.
Severity
No CVSS data available.
CWE
  • carry-propagating bug
Assigner
References
URL Tags
https://security.netapp.com/advisory/ntap-2017110… x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:2185 vendor-advisoryx_refsource_REDHAT
https://github.com/openssl/openssl/commit/4443cf7… x_refsource_MISC
https://access.redhat.com/errata/RHSA-2018:2186 vendor-advisoryx_refsource_REDHAT
http://www.oracle.com/technetwork/security-adviso… x_refsource_CONFIRM
http://www.oracle.com/technetwork/security-adviso… x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:2713 vendor-advisoryx_refsource_REDHAT
https://www.oracle.com/technetwork/security-advis… x_refsource_CONFIRM
https://www.debian.org/security/2017/dsa-4018 vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/201712-03 vendor-advisoryx_refsource_GENTOO
https://access.redhat.com/errata/RHSA-2018:0998 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:2575 vendor-advisoryx_refsource_REDHAT
https://www.tenable.com/security/tns-2017-15 x_refsource_CONFIRM
http://www.oracle.com/technetwork/security-adviso… x_refsource_CONFIRM
http://www.securityfocus.com/bid/101666 vdb-entryx_refsource_BID
https://access.redhat.com/errata/RHSA-2018:2568 vendor-advisoryx_refsource_REDHAT
https://www.openssl.org/news/secadv/20171102.txt x_refsource_CONFIRM
http://www.oracle.com/technetwork/security-adviso… x_refsource_CONFIRM
https://www.debian.org/security/2017/dsa-4017 vendor-advisoryx_refsource_DEBIAN
https://www.tenable.com/security/tns-2017-14 x_refsource_CONFIRM
https://security.FreeBSD.org/advisories/FreeBSD-S… vendor-advisoryx_refsource_FREEBSD
http://www.securitytracker.com/id/1039727 vdb-entryx_refsource_SECTRACK
https://support.hpe.com/hpsc/doc/public/display?d… x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:2187 vendor-advisoryx_refsource_REDHAT
https://security.netapp.com/advisory/ntap-2018011… x_refsource_CONFIRM
https://www.oracle.com/technetwork/security-advis… x_refsource_MISC
https://www.oracle.com/technetwork/security-advis… x_refsource_MISC
Impacted products
Vendor Product Version
OpenSSL Software Foundation OpenSSL Affected: 1.1.0 - 1.1.0f
Affected: 1.0.2 - 1.0.2l
Create a notification for this product.
Date Public
2017-11-02 00:00
Show details on NVD website
To clipboard 

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              "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
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  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2017-3736",
    "datePublished": "2017-11-02T17:00:00.000Z",
    "dateReserved": "2016-12-16T00:00:00.000Z",
    "dateUpdated": "2024-09-16T20:12:39.274Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-05-30",
      "epss": "0.08287",
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    },
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. 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. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.\"}, {\"lang\": \"es\", \"value\": \"Existe un error de propagaci\\u00f3n de d\\u00edgito (carry propagation) en el procedimiento de elevaci\\u00f3n al cuadrado de x86_64 Montgomery en OpenSSL en versiones anteriores a la 1.0.2m y 1.1.0 anteriores a la 1.1.0g. Ning\\u00fan algoritmo EC se ha visto afectado. El an\\u00e1lisis sugiere que los ataques contra RSA y DSA como resultado de este defecto ser\\u00edan muy dif\\u00edciles de realizar y no se ve probable. Los ataques contra DH se consideran simplemente factibles (aunque muy dif\\u00edciles) porque la mayor\\u00eda del trabajo necesario para deducir la informaci\\u00f3n sobre una clave privada se puede realizar offline. La cantidad de recursos necesarios para este ataque ser\\u00eda muy elevada y lo m\\u00e1s probable es que solo sea accesible para un n\\u00famero limitado de atacantes. Un atacante necesitar\\u00eda acceso online a un sistema sin parchear que utilice la clave privada objetivo en una situaci\\u00f3n con par\\u00e1metros DH persistentes y una clave privada que se comparte entre m\\u00faltiples clientes. Esto solo afecta a los procesadores que son compatibles con las extensiones BMI1, BMI2 y ADX como Intel Broadwell (5\\u00aa generaci\\u00f3n) y posteriores o AMD Ryzen.\"}]",
      "id": "CVE-2017-3736",
      "lastModified": "2024-11-21T03:26:02.140",
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      "published": "2017-11-02T17:29:00.243",
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      "sourceIdentifier": "openssl-security@openssl.org",
      "vulnStatus": "Modified",
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    },
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  }
}


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Tags
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.