Linux Distros Unpatched Vulnerability : CVE-2024-42302

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

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  script_id(228853);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/21");

  script_cve_id("CVE-2024-42302");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2024-42302");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - In the Linux kernel, the following vulnerability has been resolved: PCI/DPC: Fix use-after-free on
    concurrent DPC and hot-removal Keith reports a use-after-free when a DPC event occurs concurrently to hot-
    removal of the same portion of the hierarchy: The dpc_handler() awaits readiness of the secondary bus
    below the Downstream Port where the DPC event occurred. To do so, it polls the config space of the first
    child device on the secondary bus. If that child device is concurrently removed, accesses to its struct
    pci_dev cause the kernel to oops. That's because pci_bridge_wait_for_secondary_bus() neglects to hold a
    reference on the child device. Before v6.3, the function was only called on resume from system sleep or on
    runtime resume. Holding a reference wasn't necessary back then because the pciehp IRQ thread could never
    run concurrently. (On resume from system sleep, IRQs are not enabled until after the resume_noirq phase.
    And runtime resume is always awaited before a PCI device is removed.) However starting with v6.3,
    pci_bridge_wait_for_secondary_bus() is also called on a DPC event. Commit 53b54ad074de (PCI/DPC: Await
    readiness of secondary bus after reset), which introduced that, failed to appreciate that
    pci_bridge_wait_for_secondary_bus() now needs to hold a reference on the child device because
    dpc_handler() and pciehp may indeed run concurrently. The commit was backported to v5.10+ stable kernels,
    so that's the oldest one affected. Add the missing reference acquisition. Abridged stack trace: BUG:
    unable to handle page fault for address: 00000000091400c0 CPU: 15 PID: 2464 Comm: irq/53-pcie-dpc 6.9.0
    RIP: pci_bus_read_config_dword+0x17/0x50 pci_dev_wait() pci_bridge_wait_for_secondary_bus()
    dpc_reset_link() pcie_do_recovery() dpc_handler() (CVE-2024-42302)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2024-42302");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2024-42302");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-42302");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_unpatched", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/08/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/05");

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  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("set_linux_os_id.nasl", "ssh_get_info2.nasl");
  script_require_keys("Host/OS/identifier", "Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched");
  script_require_ports("Host/OS/Red Hat Enterprise Linux-9", "Host/OS/Ubuntu Linux-16.04", "Host/OS/Ubuntu Linux-18.04", "Host/OS/Ubuntu Linux-20.04", "Host/OS/Ubuntu Linux-22.04");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/Debian/dpkg-l")) && empty_or_null(get_one_kb_item("Host/RedHat/rpm-list"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

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    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "linux-hwe-edge"}
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  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
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          {"reference": "kernel-rt-modules-partner"},
          {"reference": "kernel-rt-selftests-internal"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');
var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}