{
  "threat_severity" : "Important",
  "public_date" : "2023-07-21T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: netfilter: nf_tables: fix chain binding transaction logic in the abort path of NFT_MSG_NEWRULE",
    "id" : "2225198",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2225198"
  },
  "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" : [ "A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.\nFlaw in the error handling of bound chains causes a use-after-free in the abort path of NFT_MSG_NEWRULE. The vulnerability requires CAP_NET_ADMIN to be triggered.\nWe recommend upgrading past commit 4bedf9eee016286c835e3d8fa981ddece5338795.", "A use-after-free vulnerability was found in the netfilter: nf_tables component in the Linux kernel due to a missing error handling in the abort path of NFT_MSG_NEWRULE. This flaw allows a local attacker with CAP_NET_ADMIN access capability to cause a local privilege escalation problem." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-09-12T00:00:00Z",
    "advisory" : "RHSA-2023:5069",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-284.30.1.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-09-12T00:00:00Z",
    "advisory" : "RHSA-2023:5091",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9::nfv",
    "package" : "kernel-rt-0:5.14.0-284.30.1.rt14.315.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-09-12T00:00:00Z",
    "advisory" : "RHSA-2023:5069",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-284.30.1.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-09-12T00:00:00Z",
    "advisory" : "RHSA-2023:5093",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kpatch-patch"
  } ],
  "package_state" : [ {
    "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",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "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"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-3610\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-3610\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=4bedf9eee016286c835e3d8fa981ddece5338795" ],
  "name" : "CVE-2023-3610",
  "mitigation" : {
    "value" : "In order to trigger the issue, it requires the ability to create user/net namespaces.\nOn non-containerized deployments of Red Hat Enterprise Linux 8, you can disable user namespaces by setting user.max_user_namespaces to 0:\n# echo \"user.max_user_namespaces=0\" > /etc/sysctl.d/userns.conf\n# sysctl -p /etc/sysctl.d/userns.conf\nOn containerized deployments, such as Red Hat OpenShift Container Platform, do not use this mitigation as the functionality is needed to be enabled.",
    "lang" : "en:us"
  },
  "csaw" : false
}