Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987607)

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

include('compat.inc');

if (description)
{
  script_id(270979);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/10/21");

  script_cve_id("CVE-2021-47647");

  script_name(english:"Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987607)");

  script_set_attribute(attribute:"synopsis", value:
"The Unity Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the
UTSA-2025-987607 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    clk: qcom: ipq8074: fix PCI-E clock oops

    Fix PCI-E clock related kernel oops that are caused by a missing clock
    parent.

    pcie0_rchng_clk_src has num_parents set to 2 but only one parent is
    actually set via parent_hws, it should also have XO defined.
    This will cause the kernel to panic on a NULL pointer in
    clk_core_get_parent_by_index().

    So, to fix this utilize clk_parent_data to provide gcc_xo_gpll0 parent
    data.
    Since there is already an existing static const char * const gcc_xo_gpll0[]
    used to provide the same parents via parent_names convert those users to
    clk_parent_data as well.

    Without this earlycon is needed to even catch the OOPS as it will reset
    the board before serial is initialized with the following:

    [    0.232279] Unable to handle kernel paging request at virtual address 0000a00000000000
    [    0.232322] Mem abort info:
    [    0.239094]   ESR = 0x96000004
    [    0.241778]   EC = 0x25: DABT (current EL), IL = 32 bits
    [    0.244908]   SET = 0, FnV = 0
    [    0.250377]   EA = 0, S1PTW = 0
    [    0.253236]   FSC = 0x04: level 0 translation fault
    [    0.256277] Data abort info:
    [    0.261141]   ISV = 0, ISS = 0x00000004
    [    0.264262]   CM = 0, WnR = 0
    [    0.267820] [0000a00000000000] address between user and kernel address ranges
    [    0.270954] Internal error: Oops: 96000004 [#1] SMP
    [    0.278067] Modules linked in:
    [    0.282751] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.15.10 #0
    [    0.285882] Hardware name: Xiaomi AX3600 (DT)
    [    0.292043] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
    [    0.296299] pc : clk_core_get_parent_by_index+0x68/0xec
    [    0.303067] lr : __clk_register+0x1d8/0x820
    [    0.308273] sp : ffffffc01111b7d0
    [    0.312438] x29: ffffffc01111b7d0 x28: 0000000000000000 x27: 0000000000000040
    [    0.315919] x26: 0000000000000002 x25: 0000000000000000 x24: ffffff8000308800
    [    0.323037] x23: ffffff8000308850 x22: ffffff8000308880 x21: ffffff8000308828
    [    0.330155] x20: 0000000000000028 x19: ffffff8000309700 x18: 0000000000000020
    [    0.337272] x17: 000000005cc86990 x16: 0000000000000004 x15: ffffff80001d9d0a
    [    0.344391] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000006
    [    0.351508] x11: 0000000000000003 x10: 0101010101010101 x9 : 0000000000000000
    [    0.358626] x8 : 7f7f7f7f7f7f7f7f x7 : 6468626f5e626266 x6 : 17000a3a403c1b06
    [    0.365744] x5 : 061b3c403a0a0017 x4 : 0000000000000000 x3 : 0000000000000001
    [    0.372863] x2 : 0000a00000000000 x1 : 0000000000000001 x0 : ffffff8000309700
    [    0.379982] Call trace:
    [    0.387091]  clk_core_get_parent_by_index+0x68/0xec
    [    0.389351]  __clk_register+0x1d8/0x820
    [    0.394210]  devm_clk_hw_register+0x5c/0xe0
    [    0.398030]  devm_clk_register_regmap+0x44/0x8c
    [    0.402198]  qcom_cc_really_probe+0x17c/0x1d0
    [    0.406711]  qcom_cc_probe+0x34/0x44
    [    0.411224]  gcc_ipq8074_probe+0x18/0x30
    [    0.414869]  platform_probe+0x68/0xe0
    [    0.418776]  really_probe.part.0+0x9c/0x30c
    [    0.422336]  __driver_probe_device+0x98/0x144
    [    0.426329]  driver_probe_device+0x44/0x11c
    [    0.430842]  __device_attach_driver+0xb4/0x120
    [    0.434836]  bus_for_each_drv+0x68/0xb0
    [    0.439349]  __device_attach+0xb0/0x170
    [    0.443081]  device_initial_probe+0x14/0x20
    [    0.446901]  bus_probe_device+0x9c/0xa4
    [    0.451067]  device_add+0x35c/0x834
    [    0.454886]  of_device_add+0x54/0x64
    [    0.458360]  of_platform_device_create_pdata+0xc0/0x100
    [    0.462181]  of_platform_bus_create+0x114/0x370
    [    0.467128]  of_platform_bus_create+0x15c/0x370
    [    0.471641]  of_platform_populate+0x50/0xcc
    [    0.476155]  of_platform_default_populate_init+0xa8/0xc8
    [    0.480324]  do_one_initcall+0x50/0x1b0
    [    0.485877]  kernel_init_freeable+0x234/0x29c
    [    0.489436]  kernel_init+0x24/0x120
    [    0.493948]  ret_from_fork+0x10/0x20
    [    0.497253] Code: d50323bf d65f03c0 f94002a2 b4000302 (f9400042)
    [    0.501079] ---[ end trace 4ca7e1129da2abce ]---

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://src.uniontech.com/#/security_advisory_detail?utsa_id=UTSA-2025-987607
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?133c8941");
  # https://lore.kernel.org/linux-cve-announce/2025022648-CVE-2021-47647-febb@gregkh
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ff0943ba");
  script_set_attribute(attribute:"see_also", value:"https://nvd.nist.gov/vuln/detail/CVE-2021-47647");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-47647");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/02/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/10/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Unity Linux Local Security Checks");

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

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/UOS-Server/release", "Host/UOS-Server/rpm-list", "Host/cpu");

  exit(0);
}
include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'UOS Server' >!< os_product) audit(AUDIT_OS_NOT, 'UOS Server');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'UOS Server');
if (! preg(pattern:"^20.1070e([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'UOS Server 20.1070e', 'UOS Server ' + os_version);

if (!get_kb_item('Host/UOS-Server/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && 'amd64' >!< cpu && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'UOS Server', cpu);


var constraints = [
  {
    'release': '20',
    'sp': '1070e',
    'pkgs': [
      {'reference':'kernel-5.10.0-74.15', 'sp':'1070e', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-74.15', 'sp':'1070e', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-74.15', 'sp':'1070e', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}


if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel');
}