{
    "CVE_data_meta": {
        "ASSIGNER": "security@mozilla.org",
        "ID": "CVE-2015-2721",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Mozilla Network Security Services (NSS) before 3.19, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, Thunderbird before 38.1, and other products, does not properly determine state transitions for the TLS state machine, which allows man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages, as demonstrated by removing a forward-secrecy property by blocking a ServerKeyExchange message, aka a \"SMACK SKIP-TLS\" issue."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
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    "references": {
        "reference_data": [
            {
                "name": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html",
                "refsource": "CONFIRM",
                "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"
            },
            {
                "name": "openSUSE-SU-2015:1229",
                "refsource": "SUSE",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html"
            },
            {
                "name": "SUSE-SU-2015:1268",
                "refsource": "SUSE",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00033.html"
            },
            {
                "name": "https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.19_release_notes",
                "refsource": "CONFIRM",
                "url": "https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.19_release_notes"
            },
            {
                "name": "83398",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/83398"
            },
            {
                "name": "GLSA-201512-10",
                "refsource": "GENTOO",
                "url": "https://security.gentoo.org/glsa/201512-10"
            },
            {
                "name": "GLSA-201701-46",
                "refsource": "GENTOO",
                "url": "https://security.gentoo.org/glsa/201701-46"
            },
            {
                "name": "DSA-3336",
                "refsource": "DEBIAN",
                "url": "http://www.debian.org/security/2015/dsa-3336"
            },
            {
                "name": "http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html",
                "refsource": "CONFIRM",
                "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html"
            },
            {
                "name": "75541",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/75541"
            },
            {
                "name": "RHSA-2015:1185",
                "refsource": "REDHAT",
                "url": "http://rhn.redhat.com/errata/RHSA-2015-1185.html"
            },
            {
                "name": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html",
                "refsource": "CONFIRM",
                "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
            },
            {
                "name": "DSA-3324",
                "refsource": "DEBIAN",
                "url": "http://www.debian.org/security/2015/dsa-3324"
            },
            {
                "name": "USN-2672-1",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-2672-1"
            },
            {
                "name": "USN-2673-1",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-2673-1"
            },
            {
                "name": "1032784",
                "refsource": "SECTRACK",
                "url": "http://www.securitytracker.com/id/1032784"
            },
            {
                "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1086145",
                "refsource": "CONFIRM",
                "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1086145"
            },
            {
                "name": "SUSE-SU-2015:1269",
                "refsource": "SUSE",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00034.html"
            },
            {
                "name": "http://www.mozilla.org/security/announce/2015/mfsa2015-71.html",
                "refsource": "CONFIRM",
                "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-71.html"
            },
            {
                "name": "http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html",
                "refsource": "CONFIRM",
                "url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html"
            },
            {
                "name": "91787",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/91787"
            },
            {
                "name": "openSUSE-SU-2015:1266",
                "refsource": "SUSE",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html"
            },
            {
                "name": "RHSA-2015:1664",
                "refsource": "REDHAT",
                "url": "http://rhn.redhat.com/errata/RHSA-2015-1664.html"
            },
            {
                "name": "USN-2656-1",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-2656-1"
            },
            {
                "name": "SUSE-SU-2015:1449",
                "refsource": "SUSE",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html"
            },
            {
                "name": "https://smacktls.com",
                "refsource": "MISC",
                "url": "https://smacktls.com"
            },
            {
                "name": "1032783",
                "refsource": "SECTRACK",
                "url": "http://www.securitytracker.com/id/1032783"
            },
            {
                "name": "USN-2656-2",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-2656-2"
            },
            {
                "name": "http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html",
                "refsource": "CONFIRM",
                "url": "http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html"
            }
        ]
    }
}