{
  "threat_severity" : "Important",
  "public_date" : "2019-05-30T12:53:00Z",
  "bugzilla" : {
    "description" : "kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c",
    "id" : "1713059",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1713059"
  },
  "cvss3" : {
    "cvss3_base_score" : "8.0",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-122",
  "details" : [ "A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network.", "A flaw was found in the Linux kernel's Marvell wifi chip driver. A heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c allows remote attackers to cause a denial of service(system crash) or execute arbitrary code." ],
  "statement" : "This flaw is currently rated as Important as it is possible for an attacker to setup a wifi access point with identical configuration in another location and intercept have the system auto connect and possibly be exploited.",
  "acknowledgement" : "Red Hat would like to thank huangwen (ADLab of Venustech) for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2019-10-16T00:00:00Z",
    "advisory" : "RHSA-2019:3089",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-1062.4.1.rt56.1027.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2019-10-16T00:00:00Z",
    "advisory" : "RHSA-2019:3055",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-1062.4.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2019-10-16T00:00:00Z",
    "advisory" : "RHSA-2019:3076",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kpatch-patch"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-01-21T00:00:00Z",
    "advisory" : "RHSA-2020:0174",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-alt-0:4.14.0-115.17.1.el7a"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.6 Extended Update Support",
    "release_date" : "2020-05-26T00:00:00Z",
    "advisory" : "RHSA-2020:2289",
    "cpe" : "cpe:/o:redhat:rhel_eus:7.6",
    "package" : "kernel-0:3.10.0-957.54.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2019-09-12T00:00:00Z",
    "advisory" : "RHSA-2019:2741",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::nfv",
    "package" : "kernel-rt-0:4.18.0-80.11.1.rt9.156.el8_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2019-09-12T00:00:00Z",
    "advisory" : "RHSA-2019:2703",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-80.11.1.el8_0"
  }, {
    "product_name" : "Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS",
    "release_date" : "2020-05-26T00:00:00Z",
    "advisory" : "RHSA-2020:2289",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7::hypervisor",
    "package" : "kernel-0:3.10.0-957.54.1.el7"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2019-3846\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-3846\nhttps://seclists.org/oss-sec/2019/q2/133" ],
  "name" : "CVE-2019-3846",
  "mitigation" : {
    "value" : "This flaw requires a system with marvell wifi network card to be attempting to connect to a attacker controlled wifi network.  A temporary mitigation may be to only connect to known-good networks via wifi, or connect to a network via ethernet.  Alternatively if wireless networking is not used the mwifiex kernel module can be blacklisted to prevent misuse of the vulnerable code.",
    "lang" : "en:us"
  },
  "csaw" : false
}