{
    "CVE_data_meta": {
        "ASSIGNER": "security@mozilla.org",
        "ID": "CVE-2017-7805",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Firefox",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_value": "56"
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Firefox ESR",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_value": "52.4"
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Thunderbird",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_value": "52.4"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Mozilla"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer. This saved data is used for later messages but in some cases, the handshake transcript can exceed the space available in the current buffer, causing the allocation of a new buffer. This leaves a pointer pointing to the old, freed buffer, resulting in a use-after-free when handshake hashes are then calculated afterwards. This can result in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Use-after-free in TLS 1.2 generating handshake hashes"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "RHSA-2017:2832",
                "refsource": "REDHAT",
                "url": "https://access.redhat.com/errata/RHSA-2017:2832"
            },
            {
                "name": "101059",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/101059"
            },
            {
                "name": "[debian-lts-announce] 20171101 [SECURITY] [DLA 1153-1] icedove/thunderbird security update",
                "refsource": "MLIST",
                "url": "https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html"
            },
            {
                "name": "https://www.mozilla.org/security/advisories/mfsa2017-22/",
                "refsource": "CONFIRM",
                "url": "https://www.mozilla.org/security/advisories/mfsa2017-22/"
            },
            {
                "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1377618",
                "refsource": "CONFIRM",
                "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1377618"
            },
            {
                "name": "1039465",
                "refsource": "SECTRACK",
                "url": "http://www.securitytracker.com/id/1039465"
            },
            {
                "name": "https://www.mozilla.org/security/advisories/mfsa2017-21/",
                "refsource": "CONFIRM",
                "url": "https://www.mozilla.org/security/advisories/mfsa2017-21/"
            },
            {
                "name": "DSA-4014",
                "refsource": "DEBIAN",
                "url": "https://www.debian.org/security/2017/dsa-4014"
            },
            {
                "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": "https://www.mozilla.org/security/advisories/mfsa2017-23/",
                "refsource": "CONFIRM",
                "url": "https://www.mozilla.org/security/advisories/mfsa2017-23/"
            },
            {
                "name": "DSA-3998",
                "refsource": "DEBIAN",
                "url": "https://www.debian.org/security/2017/dsa-3998"
            },
            {
                "name": "DSA-3987",
                "refsource": "DEBIAN",
                "url": "https://www.debian.org/security/2017/dsa-3987"
            },
            {
                "name": "GLSA-201803-14",
                "refsource": "GENTOO",
                "url": "https://security.gentoo.org/glsa/201803-14"
            }
        ]
    }
}