CVE-2017-3738
Vulnerability from cvelistv5
Published
2017-12-07 16:00
Modified
2024-09-16 18:34
Severity ?
Summary
There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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 DH1024 are considered just feasible, 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 significant. However, for an attack on TLS to be meaningful, the server would have to share the DH1024 private key among multiple clients, which is no longer an option since CVE-2016-0701. This only affects processors that support the AVX2 but not ADX extensions like Intel Haswell (4th generation). Note: The impact from this issue is similar to CVE-2017-3736, CVE-2017-3732 and CVE-2015-3193. OpenSSL version 1.0.2-1.0.2m and 1.1.0-1.1.0g are affected. Fixed in OpenSSL 1.0.2n. Due to the low severity of this issue we are not issuing a new release of OpenSSL 1.1.0 at this time. The fix will be included in OpenSSL 1.1.0h when it becomes available. The fix is also available in commit e502cc86d in the OpenSSL git repository.
References
openssl-security@openssl.orghttp://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttp://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttp://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttp://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttp://www.securityfocus.com/bid/102118Third Party Advisory, VDB Entry
openssl-security@openssl.orghttp://www.securitytracker.com/id/1039978Third Party Advisory, VDB Entry
openssl-security@openssl.orghttps://access.redhat.com/errata/RHSA-2018:0998Third Party Advisory
openssl-security@openssl.orghttps://access.redhat.com/errata/RHSA-2018:2185Third Party Advisory
openssl-security@openssl.orghttps://access.redhat.com/errata/RHSA-2018:2186Third Party Advisory
openssl-security@openssl.orghttps://access.redhat.com/errata/RHSA-2018:2187Third Party Advisory
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/e502cc86df9dafded1694fceb3228ee34d11c11aPatch, Third Party Advisory
openssl-security@openssl.orghttps://nodejs.org/en/blog/vulnerability/december-2017-security-releases/Vendor Advisory
openssl-security@openssl.orghttps://security.FreeBSD.org/advisories/FreeBSD-SA-17:12.openssl.ascThird Party Advisory
openssl-security@openssl.orghttps://security.gentoo.org/glsa/201712-03Third Party Advisory
openssl-security@openssl.orghttps://security.netapp.com/advisory/ntap-20171208-0001/Third Party Advisory
openssl-security@openssl.orghttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03881en_usThird Party Advisory
openssl-security@openssl.orghttps://www.debian.org/security/2017/dsa-4065Third Party Advisory
openssl-security@openssl.orghttps://www.debian.org/security/2018/dsa-4157Third Party Advisory
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20171207.txtVendor Advisory
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20180327.txtVendor Advisory
openssl-security@openssl.orghttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2017-16Third Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2018-04Third Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2018-06Third Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2018-07Third Party Advisory
Impacted products
OpenSSL Software FoundationOpenSSL
Show details on NVD website

To clipboard 

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              "refsource": "CONFIRM",
              "url": "https://nodejs.org/en/blog/vulnerability/december-2017-security-releases/"
            },
            {
              "name": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html",
              "refsource": "CONFIRM",
              "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
            },
            {
              "name": "102118",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/102118"
            },
            {
              "name": "https://www.tenable.com/security/tns-2017-16",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2017-16"
            },
            {
              "name": "https://www.openssl.org/news/secadv/20180327.txt",
              "refsource": "CONFIRM",
              "url": "https://www.openssl.org/news/secadv/20180327.txt"
            },
            {
              "name": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbst03881en_us",
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              "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbst03881en_us"
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            {
              "name": "RHSA-2018:2187",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:2187"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20171208-0001/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20171208-0001/"
            },
            {
              "name": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
            },
            {
              "name": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2017-3738",
    "datePublished": "2017-12-07T16:00:00Z",
    "dateReserved": "2016-12-16T00:00:00",
    "dateUpdated": "2024-09-16T18:34:25.955Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2017-3738\",\"sourceIdentifier\":\"openssl-security@openssl.org\",\"published\":\"2017-12-07T16:29:00.240\",\"lastModified\":\"2022-08-19T11:49:42.737\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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 DH1024 are considered just feasible, 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 significant. However, for an attack on TLS to be meaningful, the server would have to share the DH1024 private key among multiple clients, which is no longer an option since CVE-2016-0701. This only affects processors that support the AVX2 but not ADX extensions like Intel Haswell (4th generation). Note: The impact from this issue is similar to CVE-2017-3736, CVE-2017-3732 and CVE-2015-3193. OpenSSL version 1.0.2-1.0.2m and 1.1.0-1.1.0g are affected. Fixed in OpenSSL 1.0.2n. Due to the low severity of this issue we are not issuing a new release of OpenSSL 1.1.0 at this time. The fix will be included in OpenSSL 1.1.0h when it becomes available. The fix is also available in commit e502cc86d in the OpenSSL git repository.\"},{\"lang\":\"es\",\"value\":\"Existe un error de desbordamiento en el procedimiento de multiplicaci\u00f3n AVX2 Montgomery empleado en la exponenciaci\u00f3n con m\u00f3dulos de 1024 bits. Los algoritmos EC no se han visto afectados. Los an\u00e1lisis sugieren que los ataques contra RSA y DSA como resultado de este defecto ser\u00edan muy dif\u00edciles de realizar y se cree que son improbables. Los ataques contra DH102 se consideran solo posibles, ya que la mayor parte del trabajo necesario para deducir informaci\u00f3n sobre una clave privada puede realizarse sin conexi\u00f3n. La cantidad de recursos necesarios para realizar tal ataque ser\u00eda significativa. Sin embargo, para que un ataque sobre TLS sea significativo, el servidor tendr\u00eda que compartir la clave privada DH1024 entre m\u00faltiples clientes, lo que ya no es una opci\u00f3n desde CVE-2016-0701. Esto solo afecta a procesadores compatibles con la extensi\u00f3n AVX2, pero no la ADX, como Intel Haswell (cuarta generaci\u00f3n). Nota: El impacto de este problema es similar a CVE-2017-3736, CVE-2017-3732 y CVE-2015-3193. Se han visto afectadas las versiones 1.0.2-1.0.2m y 1.1.0-1.1.0g de OpenSSL. Se ha solucionado en OpenSSL 1.0.2n. Debido a la baja gravedad de este problema, no se va a lanzar una nueva versi\u00f3n de OpenSSL 1.1.0 en este momento. La correcci\u00f3n se aplicar\u00e1 en OpenSSL 1.1.0h cuando est\u00e9 disponible. 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  }
}


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