{
  "threat_severity" : "Moderate",
  "public_date" : "2024-04-04T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: netfilter: nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain",
    "id" : "2273405",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2273405"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-416",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain\nRemove netdevice from inet/ingress basechain in case NETDEV_UNREGISTER\nevent is reported, otherwise a stale reference to netdevice remains in\nthe hook list.", "A vulnerability was found in the Linux kernel's netfilter subsystem, related to the nft_chain_filter feature. This issue occurs when a NETDEV_UNREGISTER event is reported, which can leave a stale reference to a network device in the ingress basechain. If this issue is not addressed, this stale reference could result in lingering issues with network device handling." ],
  "statement" : "The vulnerability has been fixed by ensuring that network devices are correctly removed from the basechain when these events occur. It affects multiple Linux kernel versions and is rated as a medium-severity issue with a CVSS v3 base score of 5.5, indicating it could lead to a denial of service under certain conditions.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-08-15T00:00:00Z",
    "advisory" : "RHSA-2024:5363",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-427.31.1.el9_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-08-15T00:00:00Z",
    "advisory" : "RHSA-2024:5363",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-427.31.1.el9_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
    "release_date" : "2024-08-13T00:00:00Z",
    "advisory" : "RHSA-2024:5257",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.0",
    "package" : "kernel-0:5.14.0-70.112.1.el9_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
    "release_date" : "2024-08-13T00:00:00Z",
    "advisory" : "RHSA-2024:5256",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.0::nfv",
    "package" : "kernel-rt-0:5.14.0-70.112.1.rt21.184.el9_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Extended Update Support",
    "release_date" : "2024-07-24T00:00:00Z",
    "advisory" : "RHSA-2024:4823",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.2",
    "package" : "kernel-0:5.14.0-284.75.1.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Extended Update Support",
    "release_date" : "2024-07-24T00:00:00Z",
    "advisory" : "RHSA-2024:4831",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.2::nfv",
    "package" : "kernel-rt-0:5.14.0-284.75.1.rt14.360.el9_2"
  } ],
  "package_state" : [ {
    "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" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2024-26808\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26808\nhttps://lore.kernel.org/linux-cve-announce/2024040458-CVE-2024-26808-2df2@gregkh/T" ],
  "name" : "CVE-2024-26808",
  "csaw" : false
}