Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993238)

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

include('compat.inc');

if (description)
{
  script_id(281456);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/12/31");

  script_cve_id("CVE-2023-53108");

  script_name(english:"Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993238)");

  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-2025-993238 advisory.

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

    net/iucv: Fix size of interrupt data

    iucv_irq_data needs to be 4 bytes larger.
    These bytes are not used by the iucv module, but written by
    the z/VM hypervisor in case a CPU is deconfigured.

    Reported as:
    BUG dma-kmalloc-64 (Not tainted): kmalloc Redzone overwritten
    -----------------------------------------------------------------------------
    0x0000000000400564-0x0000000000400567 @offset=1380. First byte 0x80 instead of 0xcc
    Allocated in iucv_cpu_prepare+0x44/0xd0 age=167839 cpu=2 pid=1
    __kmem_cache_alloc_node+0x166/0x450
    kmalloc_node_trace+0x3a/0x70
    iucv_cpu_prepare+0x44/0xd0
    cpuhp_invoke_callback+0x156/0x2f0
    cpuhp_issue_call+0xf0/0x298
    __cpuhp_setup_state_cpuslocked+0x136/0x338
    __cpuhp_setup_state+0xf4/0x288
    iucv_init+0xf4/0x280
    do_one_initcall+0x78/0x390
    do_initcalls+0x11a/0x140
    kernel_init_freeable+0x25e/0x2a0
    kernel_init+0x2e/0x170
    __ret_from_fork+0x3c/0x58
    ret_from_fork+0xa/0x40
    Freed in iucv_init+0x92/0x280 age=167839 cpu=2 pid=1
    __kmem_cache_free+0x308/0x358
    iucv_init+0x92/0x280
    do_one_initcall+0x78/0x390
    do_initcalls+0x11a/0x140
    kernel_init_freeable+0x25e/0x2a0
    kernel_init+0x2e/0x170
    __ret_from_fork+0x3c/0x58
    ret_from_fork+0xa/0x40
    Slab 0x0000037200010000 objects=32 used=30 fp=0x0000000000400640
    flags=0x1ffff00000010200(slab|head|node=0|zone=0|
    Object 0x0000000000400540 @offset=1344 fp=0x0000000000000000
    Redzone  0000000000400500: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................
    Redzone  0000000000400510: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................
    Redzone  0000000000400520: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................
    Redzone  0000000000400530: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................
    Object   0000000000400540: 00 01 00 03 00 00 00 00 00 00 00 00 00 00 00 00  ................
    Object   0000000000400550: f3 86 81 f2 f4 82 f8 82 f0 f0 f0 f0 f0 f0 f0 f2  ................
    Object   0000000000400560: 00 00 00 00 80 00 00 00 cc cc cc cc cc cc cc cc  ................
    Object   0000000000400570: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................
    Redzone  0000000000400580: cc cc cc cc cc cc cc cc                          ........
    Padding  00000000004005d4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ
    Padding  00000000004005e4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ
    Padding  00000000004005f4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a              ZZZZZZZZZZZZ
    CPU: 6 PID: 121030 Comm: 116-pai-crypto. Not tainted
    6.3.0-20230221.rc0.git4.99b8246b2d71.300.fc37.s390x+debug #1
    Hardware name: IBM 3931 A01 704 (z/VM 7.3.0)
    Call Trace:
    [<000000032aa034ec>] dump_stack_lvl+0xac/0x100
    [<0000000329f5a6cc>] check_bytes_and_report+0x104/0x140
    [<0000000329f5aa78>] check_object+0x370/0x3c0
    [<0000000329f5ede6>] free_debug_processing+0x15e/0x348
    [<0000000329f5f06a>] free_to_partial_list+0x9a/0x2f0
    [<0000000329f5f4a4>] __slab_free+0x1e4/0x3a8
    [<0000000329f61768>] __kmem_cache_free+0x308/0x358
    [<000000032a91465c>] iucv_cpu_dead+0x6c/0x88
    [<0000000329c2fc66>] cpuhp_invoke_callback+0x156/0x2f0
    [<000000032aa062da>] _cpu_down.constprop.0+0x22a/0x5e0
    [<0000000329c3243e>] cpu_device_down+0x4e/0x78
    [<000000032a61dee0>] device_offline+0xc8/0x118
    [<000000032a61e048>] online_store+0x60/0xe0
    [<000000032a08b6b0>] kernfs_fop_write_iter+0x150/0x1e8
    [<0000000329fab65c>] vfs_write+0x174/0x360
    [<0000000329fab9fc>] ksys_write+0x74/0x100
    [<000000032aa03a5a>] __do_syscall+0x1da/0x208
    [<000000032aa177b2>] system_call+0x82/0xb0
    INFO: lockdep is turned off.
    FIX dma-kmalloc-64: Restoring kmalloc Redzone 0x0000000000400564-0x0000000000400567=0xcc
    FIX dma-kmalloc-64: Object at 0x0000000000400540 not freed

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-2025-993238
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0bc55d61");
  # https://lore.kernel.org/linux-cve-announce/2025050226-CVE-2023-53108-d921@gregkh
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c6b17540");
  script_set_attribute(attribute:"see_also", value:"https://nvd.nist.gov/vuln/detail/CVE-2023-53108");
  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-2023-53108");

  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:"2023/11/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/12/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/12/31");

  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:"^20.1060a|20.1070a([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'UOS Server 20.1060a / 20.1070a', '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 && 'loongarch64' >!< cpu && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'UOS Server', cpu);


var constraints = [
  {
    'release': '20',
    'sp': '1060a',
    'pkgs': [
      {'reference':'kernel-5.10.0-46.38', 'sp':'1060a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-46.38', 'sp':'1060a', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-46.38', 'sp':'1060a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  },
  {
    'release': '20',
    'sp': '1070a',
    'pkgs': [
      {'reference':'kernel-5.10.0-79.5', 'sp':'1070a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-79.5', 'sp':'1070a', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-79.5', 'sp':'1070a', 'cpu':'loongarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-79.5', 'sp':'1070a', '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');
}