CVE-2017-3732 (GCVE-0-2017-3732)
Vulnerability from cvelistv5
Published
2017-05-04 19:00
Modified
2024-09-16 22:08
Severity ?
CWE
  • carry-propagating bug
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.
References
openssl-security@openssl.org http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html Patch, Third Party Advisory
openssl-security@openssl.org http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html Patch, Third Party Advisory
openssl-security@openssl.org http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html Patch, Third Party Advisory
openssl-security@openssl.org http://www.securityfocus.com/bid/95814 Third Party Advisory, VDB Entry
openssl-security@openssl.org http://www.securitytracker.com/id/1037717 Third Party Advisory, VDB Entry
openssl-security@openssl.org https://access.redhat.com/errata/RHSA-2018:2185 Third Party Advisory
openssl-security@openssl.org https://access.redhat.com/errata/RHSA-2018:2186 Third Party Advisory
openssl-security@openssl.org https://access.redhat.com/errata/RHSA-2018:2187 Third Party Advisory
openssl-security@openssl.org https://access.redhat.com/errata/RHSA-2018:2568 Third Party Advisory
openssl-security@openssl.org https://access.redhat.com/errata/RHSA-2018:2575 Third Party Advisory
openssl-security@openssl.org https://access.redhat.com/errata/RHSA-2018:2713 Third Party Advisory
openssl-security@openssl.org https://github.com/openssl/openssl/commit/a59b90bf491410f1f2bc4540cc21f1980fd14c5b Patch
openssl-security@openssl.org https://security.FreeBSD.org/advisories/FreeBSD-SA-17:02.openssl.asc Third Party Advisory
openssl-security@openssl.org https://security.gentoo.org/glsa/201702-07 Third Party Advisory
openssl-security@openssl.org https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us Third Party Advisory
openssl-security@openssl.org https://www.openssl.org/news/secadv/20170126.txt Vendor Advisory
openssl-security@openssl.org https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch, Third Party Advisory
openssl-security@openssl.org https://www.tenable.com/security/tns-2017-04 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.securityfocus.com/bid/95814 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 http://www.securitytracker.com/id/1037717 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:2185 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:2186 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:2187 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:2568 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:2575 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:2713 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/openssl/openssl/commit/a59b90bf491410f1f2bc4540cc21f1980fd14c5b Patch
af854a3a-2127-422b-91ae-364da2661108 https://security.FreeBSD.org/advisories/FreeBSD-SA-17:02.openssl.asc Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://security.gentoo.org/glsa/201702-07 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.openssl.org/news/secadv/20170126.txt Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.tenable.com/security/tns-2017-04 Third Party Advisory
Impacted products
Vendor Product Version
OpenSSL OpenSSL Version: openssl-1.1.0
Version: openssl-1.1.0a
Version: openssl-1.1.0b
Version: openssl-1.1.0c
Version: openssl-1.0.2
Version: openssl-1.0.2a
Version: openssl-1.0.2b
Version: openssl-1.0.2c
Version: openssl-1.0.2d
Version: openssl-1.0.2e
Version: openssl-1.0.2f
Version: openssl-1.0.2g
Version: openssl-1.0.2h
Version: openssl-1.0.2i
Version: openssl-1.0.2j
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              "url": "https://security.gentoo.org/glsa/201702-07"
            },
            {
              "name": "RHSA-2018:2568",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:2568"
            },
            {
              "name": "95814",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/95814"
            },
            {
              "name": "http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html",
              "refsource": "CONFIRM",
              "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html"
            },
            {
              "name": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbhf03838en_us",
              "refsource": "CONFIRM",
              "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbhf03838en_us"
            },
            {
              "name": "RHSA-2018:2187",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:2187"
            },
            {
              "name": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2017-3732",
    "datePublished": "2017-05-04T19:00:00Z",
    "dateReserved": "2016-12-16T00:00:00",
    "dateUpdated": "2024-09-16T22:08:37.371Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2017-3732\",\"sourceIdentifier\":\"openssl-security@openssl.org\",\"published\":\"2017-05-04T19:29:00.400\",\"lastModified\":\"2025-04-20T01:37:25.860\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"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 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  }
}


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