Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001093)

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

include('compat.inc');

if (description)
{
  script_id(290428);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/06");

  script_cve_id("CVE-2016-0728");

  script_name(english:"Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001093)");

  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-2026-001093 advisory.

    The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1
    mishandles object references in a certain error case, which allows local users to gain privileges or cause
    a denial of service (integer overflow and use-after-free) via crafted keyctl commands.

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-2026-001093
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?78a296db");
  # http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=23567fd052a9abb6d67fe8e7a9ccdd9800a540f2
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a40e74bb");
  # http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a9468f3b");
  # http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176194.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a5fd7852");
  # http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00026.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4e1f3266");
  # http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00012.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9a777309");
  # http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00033.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?247397d3");
  # http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00034.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?242af851");
  # http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00035.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?714e00ab");
  # http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00038.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?de19363d");
  # http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00039.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0864cf24");
  # http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00040.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0e6da73c");
  # http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00041.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6104ef52");
  # http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00043.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?470c7630");
  # http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00044.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?022fd87d");
  # http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00045.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?379090f6");
  # http://perception-point.io/2016/01/14/analysis-and-exploitation-of-a-linux-kernel-vulnerability-cve-2016-0728/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?20d57016");
  script_set_attribute(attribute:"see_also", value:"http://rhn.redhat.com/errata/RHSA-2016-0064.html");
  script_set_attribute(attribute:"see_also", value:"http://rhn.redhat.com/errata/RHSA-2016-0065.html");
  script_set_attribute(attribute:"see_also", value:"http://rhn.redhat.com/errata/RHSA-2016-0068.html");
  script_set_attribute(attribute:"see_also", value:"http://source.android.com/security/bulletin/2016-03-01.html");
  script_set_attribute(attribute:"see_also", value:"http://www.debian.org/security/2016/dsa-3448");
  script_set_attribute(attribute:"see_also", value:"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1");
  script_set_attribute(attribute:"see_also", value:"http://www.openwall.com/lists/oss-security/2016/01/19/2");
  # http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7704c22a");
  script_set_attribute(attribute:"see_also", value:"http://www.securityfocus.com/bid/81054");
  script_set_attribute(attribute:"see_also", value:"http://www.securitytracker.com/id/1034701");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2870-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2870-2");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2871-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2871-2");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2872-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2872-2");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2872-3");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2873-1");
  script_set_attribute(attribute:"see_also", value:"https://bto.bluecoat.com/security-advisory/sa112");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1297475");
  # https://github.com/torvalds/linux/commit/23567fd052a9abb6d67fe8e7a9ccdd9800a540f2
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4e7b95df");
  # https://h20565.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05018265
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0b362a23");
  # https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05130958
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7aa36031");
  # https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0130690c");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2016-0728");
  script_set_attribute(attribute:"see_also", value:"https://security.netapp.com/advisory/ntap-20160211-0001/");
  script_set_attribute(attribute:"see_also", value:"https://www.exploit-db.com/exploits/39277/");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-0728");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/01/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/01/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/16");

  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) 2026 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:"^20.1050e|20.1060e|20.1070e([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'UOS Server 20.1050e / 20.1060e / 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 && 'sw_64' >!< cpu && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'UOS Server', cpu);


var constraints = [
  {
    'release': '20',
    'sp': '1050e',
    'pkgs': [
      {'reference':'kernel-4.19.90-2211.5.0.0178.45', 'sp':'1050e', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.19.90-2211.5.0.0178.45', 'sp':'1050e', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.19.90-2211.5.0.0178.45', 'sp':'1050e', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  },
  {
    'release': '20',
    'sp': '1060e',
    'pkgs': [
      {'reference':'kernel-4.19.90-2305.1.0.0199.102', 'sp':'1060e', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.19.90-2305.1.0.0199.102', 'sp':'1060e', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.19.90-2305.1.0.0199.102', 'sp':'1060e', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  },
  {
    'release': '20',
    'sp': '1070e',
    'pkgs': [
      {'reference':'kernel-4.19.90-2409.6.0.0297.103.005', 'sp':'1070e', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.19.90-2409.6.0.0297.103.005', 'sp':'1070e', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.19.90-2409.6.0.0297.103.005', 'sp':'1070e', 'cpu':'sw_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.19.90-2409.6.0.0297.103.005', '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_HOLE,
      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');
}