Linux Distros Unpatched Vulnerability : CVE-2022-50054

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

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  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/17");

  script_cve_id("CVE-2022-50054");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2022-50054");

  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: iavf: Fix NULL pointer dereference in
    iavf_get_link_ksettings Fix possible NULL pointer dereference, due to freeing of adapter->vf_res in
    iavf_init_get_resources. Previous commit introduced a regression, where receiving
    IAVF_ERR_ADMIN_QUEUE_NO_WORK from iavf_get_vf_config would free adapter->vf_res. However, netdev is still
    registered, so ethtool_ops can be called. Calling iavf_get_link_ksettings with no vf_res, will result
    with: [ 9385.242676] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 9385.242683] #PF:
    supervisor read access in kernel mode [ 9385.242686] #PF: error_code(0x0000) - not-present page [
    9385.242690] PGD 0 P4D 0 [ 9385.242696] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI [ 9385.242701]
    CPU: 6 PID: 3217 Comm: pmdalinux Kdump: loaded Tainted: G S E 5.18.0-04958-ga54ce3703613-dirty #1 [
    9385.242708] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.11.0 11/02/2019 [ 9385.242710] RIP:
    0010:iavf_get_link_ksettings+0x29/0xd0 [iavf] [ 9385.242745] Code: 00 0f 1f 44 00 00 b8 01 ef ff ff 48 c7
    46 30 00 00 00 00 48 c7 46 38 00 00 00 00 c6 46 0b 00 66 89 46 08 48 8b 87 68 0e 00 00 <f6> 40 08 80 75 50
    8b 87 5c 0e 00 00 83 f8 08 74 7a 76 1d 83 f8 20 [ 9385.242749] RSP: 0018:ffffc0560ec7fbd0 EFLAGS: 00010246
    [ 9385.242755] RAX: 0000000000000000 RBX: ffffc0560ec7fc08 RCX: 0000000000000000 [ 9385.242759] RDX:
    ffffffffc0ad4550 RSI: ffffc0560ec7fc08 RDI: ffffa0fc66674000 [ 9385.242762] RBP: 00007ffd1fb2bf50 R08:
    b6a2d54b892363ee R09: ffffa101dc14fb00 [ 9385.242765] R10: 0000000000000000 R11: 0000000000000004 R12:
    ffffa0fc66674000 [ 9385.242768] R13: 0000000000000000 R14: ffffa0fc66674000 R15: 00000000ffffffa1 [
    9385.242771] FS: 00007f93711a2980(0000) GS:ffffa0fad72c0000(0000) knlGS:0000000000000000 [ 9385.242775]
    CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9385.242778] CR2: 0000000000000008 CR3:
    0000000a8e61c003 CR4: 00000000003706e0 [ 9385.242781] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
    0000000000000000 [ 9385.242784] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [
    9385.242787] Call Trace: [ 9385.242791] <TASK> [ 9385.242793] ethtool_get_settings+0x71/0x1a0 [
    9385.242814] __dev_ethtool+0x426/0x2f40 [ 9385.242823] ? slab_post_alloc_hook+0x4f/0x280 [ 9385.242836] ?
    kmem_cache_alloc_trace+0x15d/0x2f0 [ 9385.242841] ? dev_ethtool+0x59/0x170 [ 9385.242848]
    dev_ethtool+0xa7/0x170 [ 9385.242856] dev_ioctl+0xc3/0x520 [ 9385.242866] sock_do_ioctl+0xa0/0xe0 [
    9385.242877] sock_ioctl+0x22f/0x320 [ 9385.242885] __x64_sys_ioctl+0x84/0xc0 [ 9385.242896]
    do_syscall_64+0x3a/0x80 [ 9385.242904] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 9385.242918] RIP:
    0033:0x7f93702396db [ 9385.242923] Code: 73 01 c3 48 8b 0d ad 57 38 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e
    0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d 57 38
    00 f7 d8 64 89 01 48 [ 9385.242927] RSP: 002b:00007ffd1fb2bf18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
    [ 9385.242932] RAX: ffffffffffffffda RBX: 000055671b1d2fe0 RCX: 00007f93702396db [ 9385.242935] RDX:
    00007ffd1fb2bf20 RSI: 0000000000008946 RDI: 0000000000000007 [ 9385.242937] RBP: 00007ffd1fb2bf20 R08:
    0000000000000003 R09: 0030763066307330 [ 9385.242940] R10: 0000000000000000 R11: 0000000000000246 R12:
    00007ffd1fb2bf80 [ 9385.242942] R13: 0000000000000007 R14: 0000556719f6de90 R15: 00007ffd1fb2c1b0 [
    9385.242948] </TASK> [ 9385.242949] Modules linked in: iavf(E) xt_CHECKSUM xt_MASQUERADE xt_conntrack
    ipt_REJECT nft_compat nf_nat_tftp nft_objref nf_conntrack_tftp bridge stp llc nft_fib_inet nft_fib_ipv4
    nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat
    nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables rfkill nfnetlink vfat fat irdma ib_uverbs
    ib_core intel_rapl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretem
    ---truncated--- (CVE-2022-50054)

Note that Nessus relies on the presence of the package as reported by the vendor.");
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  script_set_attribute(attribute:"solution", value:
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  script_set_attribute(attribute:"agent", value:"unix");
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  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

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}

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');

var distro_constraints_array = {
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    "package_manager": "dpkg-l",
    "constraints": [
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        "release": "16.04",
        "pkgs": [
          {"reference": "linux-hwe-edge"}
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          {"reference": "linux-headers-4.15.0"},
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          {"reference": "linux-image-4.15.0"},
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          {"reference": "linux-oem-5.6-tools-5.6.0"},
          {"reference": "linux-oem-5.6-tools-common"},
          {"reference": "linux-oem-5.6-tools-host"},
          {"reference": "linux-oracle-5.11"},
          {"reference": "linux-oracle-5.13"},
          {"reference": "linux-oracle-5.8"},
          {"reference": "linux-raspi2"},
          {"reference": "linux-riscv-5.11"},
          {"reference": "linux-riscv-5.8"},
          {"reference": "linux-riscv-headers-5.4.0"},
          {"reference": "linux-riscv-tools-5.4.0"},
          {"reference": "linux-tools-5.4.0"},
          {"reference": "linux-tools-5.6.0"},
          {"reference": "linux-udebs-generic"},
          {"reference": "linux-udebs-oem"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "linux-allwinner-5.19"},
          {"reference": "linux-aws-5.19"},
          {"reference": "linux-aws-6.2"},
          {"reference": "linux-aws-6.5"},
          {"reference": "linux-azure-5.19"},
          {"reference": "linux-azure-6.2"},
          {"reference": "linux-azure-6.5"},
          {"reference": "linux-azure-fde-5.19"},
          {"reference": "linux-azure-fde-6.2"},
          {"reference": "linux-buildinfo-5.15.0"},
          {"reference": "linux-buildinfo-5.17.0"},
          {"reference": "linux-cloud-tools-5.15.0"},
          {"reference": "linux-cloud-tools-5.17.0"},
          {"reference": "linux-gcp-5.19"},
          {"reference": "linux-gcp-6.2"},
          {"reference": "linux-gcp-6.5"},
          {"reference": "linux-headers-5.15.0"},
          {"reference": "linux-headers-5.17.0"},
          {"reference": "linux-hwe-5.19"},
          {"reference": "linux-hwe-6.2"},
          {"reference": "linux-hwe-6.5"},
          {"reference": "linux-image-5.15.0"},
          {"reference": "linux-image-unsigned-5.17.0"},
          {"reference": "linux-intel-iot-realtime"},
          {"reference": "linux-lowlatency-hwe-5.19"},
          {"reference": "linux-lowlatency-hwe-6.2"},
          {"reference": "linux-lowlatency-hwe-6.5"},
          {"reference": "linux-modules-5.15.0"},
          {"reference": "linux-modules-5.17.0"},
          {"reference": "linux-modules-extra-5.15.0"},
          {"reference": "linux-modules-extra-5.17.0"},
          {"reference": "linux-nvidia-6.2"},
          {"reference": "linux-nvidia-6.5"},
          {"reference": "linux-oem-5.17-headers-5.17.0"},
          {"reference": "linux-oem-5.17-tools-5.17.0"},
          {"reference": "linux-oem-5.17-tools-host"},
          {"reference": "linux-oem-6.0"},
          {"reference": "linux-oem-6.1"},
          {"reference": "linux-oem-6.5"},
          {"reference": "linux-oracle-6.5"},
          {"reference": "linux-realtime"},
          {"reference": "linux-riscv-5.19"},
          {"reference": "linux-riscv-6.5"},
          {"reference": "linux-riscv-headers-5.15.0"},
          {"reference": "linux-riscv-tools-5.15.0"},
          {"reference": "linux-starfive-5.19"},
          {"reference": "linux-starfive-6.2"},
          {"reference": "linux-starfive-6.5"},
          {"reference": "linux-tools-5.15.0"},
          {"reference": "linux-tools-5.17.0"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "linux-buildinfo-6.8.0"},
          {"reference": "linux-cloud-tools-6.8.0"},
          {"reference": "linux-headers-6.8.0"},
          {"reference": "linux-image-6.8.0"},
          {"reference": "linux-modules-6.8.0"},
          {"reference": "linux-modules-iwlwifi-6.8.0"},
          {"reference": "linux-raspi-realtime"},
          {"reference": "linux-realtime"},
          {"reference": "linux-riscv-headers-6.8.0"},
          {"reference": "linux-riscv-tools-6.8.0"},
          {"reference": "linux-tools-6.8.0"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-9": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "9",
        "pkgs": [
          {"reference": "kernel-rt"},
          {"reference": "kernel-rt-core"},
          {"reference": "kernel-rt-debug"},
          {"reference": "kernel-rt-debug-core"},
          {"reference": "kernel-rt-debug-devel"},
          {"reference": "kernel-rt-debug-devel-matched"},
          {"reference": "kernel-rt-debug-kvm"},
          {"reference": "kernel-rt-debug-modules"},
          {"reference": "kernel-rt-debug-modules-core"},
          {"reference": "kernel-rt-debug-modules-extra"},
          {"reference": "kernel-rt-debug-modules-internal"},
          {"reference": "kernel-rt-debug-modules-partner"},
          {"reference": "kernel-rt-devel"},
          {"reference": "kernel-rt-devel-matched"},
          {"reference": "kernel-rt-kvm"},
          {"reference": "kernel-rt-modules"},
          {"reference": "kernel-rt-modules-core"},
          {"reference": "kernel-rt-modules-extra"},
          {"reference": "kernel-rt-modules-internal"},
          {"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 third_party_support = get_kb_item('Host/OS/extended-third-party');
if (!empty_or_null(third_party_support)) {
    var third_party_vendors = distro_constraints_values['third_party'];
    if (!empty_or_null(third_party_vendors)) {
        var vendor;
        foreach vendor (third_party_vendors) {
            if (vendor == third_party_support) exit(0, 'A third party management patch is available for this vulnerability from ' + vendor + '.\n');
        }
    }
}

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');
}