{
  "threat_severity" : "Moderate",
  "public_date" : "2020-01-03T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: mishandles invalid descriptors in drivers/media/usb/gspca/xirlink_cit.c",
    "id" : "1824792",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1824792"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-20->CWE-476",
  "details" : [ "In the Linux kernel before 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB driver) mishandles invalid descriptors, aka CID-a246b4d54770.", "A NULL pointer dereference flaw was found in the Xirlink camera USB driver 'xirlink-cit' in the Linux kernel. The driver mishandles invalid descriptors leading to a denial-of-service (DoS). This could allow a local attacker with user privilege to crash the system or leak kernel internal information." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2021-07-21T00:00:00Z",
    "advisory" : "RHSA-2021:2726",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-1160.36.2.rt56.1179.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2021-07-21T00:00:00Z",
    "advisory" : "RHSA-2021:2725",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-1160.36.2.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2020-11-04T00:00:00Z",
    "advisory" : "RHSA-2020:4609",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::nfv",
    "package" : "kernel-rt-0:4.18.0-240.rt7.54.el8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2020-11-04T00:00:00Z",
    "advisory" : "RHSA-2020:4431",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-240.el8"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Will not fix",
    "package_name" : "kernel-alt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "fix_state" : "Will not fix",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2020-11668\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-11668" ],
  "name" : "CVE-2020-11668",
  "mitigation" : {
    "value" : "Mitigation for this issue is to skip loading the affected module 'xirlink-cit' onto the system till we have a fix available, this can be done by a blacklist mechanism, this will ensure the driver is not loaded at the boot time.\n~~~\nHow do I blacklist a kernel module to prevent it from loading automatically?\nhttps://access.redhat.com/solutions/41278 \n~~~",
    "lang" : "en:us"
  },
  "csaw" : false
}