{
  "threat_severity" : "Moderate",
  "public_date" : "2025-04-16T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: Linux kernel: Information disclosure and denial of service in ntb_hw_switchtec module",
    "id" : "2360239",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2360239"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.0",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-125",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans\nThere is a kernel API ntb_mw_clear_trans() would pass 0 to both addr and\nsize. This would make xlate_pos negative.\n[   23.734156] switchtec switchtec0: MW 0: part 0 addr 0x0000000000000000 size 0x0000000000000000\n[   23.734158] ================================================================================\n[   23.734172] UBSAN: shift-out-of-bounds in drivers/ntb/hw/mscc/ntb_hw_switchtec.c:293:7\n[   23.734418] shift exponent -1 is negative\nEnsuring xlate_pos is a positive or zero before BIT.", "A flaw was found in the Linux kernel. A local user could exploit a shift-out-of-bounds vulnerability within the `ntb_hw_switchtec` module. This vulnerability arises when the `ntb_mw_clear_trans()` application programming interface (API) processes zero values for address and size, leading to an invalid memory access. Successful exploitation could result in information disclosure and denial of service." ],
  "statement" : "MODERATE: A shift-out-of-bounds vulnerability was observed in switchtec_ntb_mw_set_trans in drivers/ntb/hw/mscc/ntb_hw_switchtec.c in the Linux Kernel. This flaw may allow a local attacker with a user account on the system to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-02-16T00:00:00Z",
    "advisory" : "RHSA-2026:2721",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.1",
    "package" : "kernel-0:6.12.0-124.38.1.el10_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10.0 Extended Update Support",
    "release_date" : "2026-02-02T00:00:00Z",
    "advisory" : "RHSA-2026:1727",
    "cpe" : "cpe:/o:redhat:enterprise_linux_eus:10.0",
    "package" : "kernel-0:6.12.0-55.58.1.el10_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-02-16T00:00:00Z",
    "advisory" : "RHSA-2026:2722",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-611.34.1.el9_7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-02-16T00:00:00Z",
    "advisory" : "RHSA-2026:2722",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-611.34.1.el9_7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
    "release_date" : "2026-01-28T00:00:00Z",
    "advisory" : "RHSA-2026:1494",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.0",
    "package" : "kernel-0:5.14.0-70.163.1.el9_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
    "release_date" : "2026-01-28T00:00:00Z",
    "advisory" : "RHSA-2026:1495",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.0::nfv",
    "package" : "kernel-rt-0:5.14.0-70.163.1.rt21.235.el9_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "release_date" : "2026-01-28T00:00:00Z",
    "advisory" : "RHSA-2026:1441",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.2",
    "package" : "kernel-0:5.14.0-284.154.1.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "release_date" : "2026-01-28T00:00:00Z",
    "advisory" : "RHSA-2026:1443",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.2::nfv",
    "package" : "kernel-rt-0:5.14.0-284.154.1.rt14.439.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.4 Extended Update Support",
    "release_date" : "2026-01-28T00:00:00Z",
    "advisory" : "RHSA-2026:1444",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.4",
    "package" : "kernel-0:5.14.0-427.108.1.el9_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.6 Extended Update Support",
    "release_date" : "2026-01-26T00:00:00Z",
    "advisory" : "RHSA-2026:1194",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.6",
    "package" : "kernel-0:5.14.0-570.81.1.el9_6"
  } ],
  "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" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Out of support scope",
    "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-2023-53034\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53034\nhttps://lore.kernel.org/linux-cve-announce/2025041650-CVE-2023-53034-8c3b@gregkh/T" ],
  "name" : "CVE-2023-53034",
  "csaw" : false
}