{
  "threat_severity" : "Moderate",
  "public_date" : "2022-03-08T00:00:00Z",
  "bugzilla" : {
    "description" : "hw: cpu: LFENCE/JMP Mitigation Update for CVE-2017-5715",
    "id" : "2061700",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2061700"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.7",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
    "status" : "verified"
  },
  "details" : [ "LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs.", "A flaw was found in hw. The speculative execution window of AMD LFENCE/JMP mitigation (MITIGATION V2-2) may be large enough to be exploited on AMD CPUs." ],
  "acknowledgement" : "Red Hat would like to thank AMD for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 6 Extended Lifecycle Support",
    "release_date" : "2023-01-17T00:00:00Z",
    "advisory" : "RHSA-2023:0187",
    "cpe" : "cpe:/o:redhat:rhel_els:6",
    "package" : "kernel-0:2.6.32-754.49.1.el6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2023-01-24T00:00:00Z",
    "advisory" : "RHSA-2023:0400",
    "cpe" : "cpe:/a:redhat:rhel_extras_rt:7",
    "package" : "kernel-rt-0:3.10.0-1160.83.1.rt56.1228.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2023-01-24T00:00:00Z",
    "advisory" : "RHSA-2023:0399",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "kernel-0:3.10.0-1160.83.1.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-05-10T00:00:00Z",
    "advisory" : "RHSA-2022:1975",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::nfv",
    "package" : "kernel-rt-0:4.18.0-372.9.1.rt7.166.el8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-05-10T00:00:00Z",
    "advisory" : "RHSA-2022:1988",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-372.9.1.el8"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2021-26401\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-26401\nhttps://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1036" ],
  "name" : "CVE-2021-26401",
  "mitigation" : {
    "value" : "AMD recommends mitigation that uses generic retpoline.",
    "lang" : "en:us"
  },
  "csaw" : false
}