{
  "threat_severity" : "Important",
  "public_date" : "2019-11-06T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: use-after-free in sound/core/timer.c",
    "id" : "1786078",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1786078"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.8",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-416",
  "details" : [ "In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code refactoring, aka CID-e7af6307a8a5. This is related to snd_timer_open and snd_timer_close_locked. The timeri variable was originally intended to be for a newly created timer instance, but was used for a different purpose after refactoring.", "A memory flaw was found in the ALSA subsystem of the Linux kernel. The struct snd_timer_instance function fails the timer->max_instances check leading to an invalid address. This could lead to a use-after-free vulnerability." ],
  "statement" : "This issue affected Linux kernel versions as shipped with Red Hat Enterprise Linux 8 starting with RHEL-8.1.0, that is Red Hat Enterprise Linux 8.1 GA kernel version.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-09-29T00:00:00Z",
    "advisory" : "RHSA-2020:4062",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-1160.rt56.1131.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-09-29T00:00:00Z",
    "advisory" : "RHSA-2020:4060",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-1160.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2020-07-21T00:00:00Z",
    "advisory" : "RHSA-2020:3016",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::nfv",
    "package" : "kernel-rt-0:4.18.0-193.13.2.rt13.65.el8_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2020-07-21T00:00:00Z",
    "advisory" : "RHSA-2020:3010",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-193.13.2.el8_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Extended Update Support",
    "release_date" : "2020-07-29T00:00:00Z",
    "advisory" : "RHSA-2020:3222",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.1",
    "package" : "kernel-0:4.18.0-147.24.2.el8_1"
  } ],
  "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" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-alt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "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-2019-19807\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-19807" ],
  "name" : "CVE-2019-19807",
  "mitigation" : {
    "value" : "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.",
    "lang" : "en:us"
  },
  "csaw" : false
}