Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002480)

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

include('compat.inc');

if (description)
{
  script_id(286892);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/10");

  script_cve_id("CVE-2014-4699");

  script_name(english:"Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002480)");

  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-2026-002480 advisory.

    The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value
    for the saved RIP address in the case of a system call that does not use IRET, which allows local users to
    leverage a race condition and gain privileges, or cause a denial of service (double fault), via a crafted
    application that makes ptrace and fork system calls.

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-2026-002480
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?180f2ad9");
  # http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b9cd18de4db3c9ffa7e17b0dc0ca99ed5aa4d43a
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5bab7e41");
  script_set_attribute(attribute:"see_also", value:"http://linux.oracle.com/errata/ELSA-2014-0924.html");
  script_set_attribute(attribute:"see_also", value:"http://linux.oracle.com/errata/ELSA-2014-3047.html");
  script_set_attribute(attribute:"see_also", value:"http://linux.oracle.com/errata/ELSA-2014-3048.html");
  script_set_attribute(attribute:"see_also", value:"http://openwall.com/lists/oss-security/2014/07/05/4");
  script_set_attribute(attribute:"see_also", value:"http://openwall.com/lists/oss-security/2014/07/08/16");
  script_set_attribute(attribute:"see_also", value:"http://openwall.com/lists/oss-security/2014/07/08/5");
  # http://packetstormsecurity.com/files/127573/Linux-Kernel-ptrace-sysret-Local-Privilege-Escalation.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?becc63e7");
  script_set_attribute(attribute:"see_also", value:"http://secunia.com/advisories/59633");
  script_set_attribute(attribute:"see_also", value:"http://secunia.com/advisories/59639");
  script_set_attribute(attribute:"see_also", value:"http://secunia.com/advisories/59654");
  script_set_attribute(attribute:"see_also", value:"http://secunia.com/advisories/60220");
  script_set_attribute(attribute:"see_also", value:"http://secunia.com/advisories/60380");
  script_set_attribute(attribute:"see_also", value:"http://secunia.com/advisories/60393");
  script_set_attribute(attribute:"see_also", value:"http://www.debian.org/security/2014/dsa-2972");
  script_set_attribute(attribute:"see_also", value:"http://www.exploit-db.com/exploits/34134");
  script_set_attribute(attribute:"see_also", value:"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.4");
  script_set_attribute(attribute:"see_also", value:"http://www.openwall.com/lists/oss-security/2014/07/04/4");
  script_set_attribute(attribute:"see_also", value:"http://www.osvdb.org/108754");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2266-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2267-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2268-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2269-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2270-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2271-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2272-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2273-1");
  script_set_attribute(attribute:"see_also", value:"http://www.ubuntu.com/usn/USN-2274-1");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1115927");
  # https://github.com/torvalds/linux/commit/b9cd18de4db3c9ffa7e17b0dc0ca99ed5aa4d43a
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b071166e");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2014-4699");
  script_set_attribute(attribute:"see_also", value:"https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.10.47");
  script_set_attribute(attribute:"see_also", value:"https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.11");
  script_set_attribute(attribute:"see_also", value:"https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.97");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-4699");

  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:"vuln_publication_date", value:"2014/07/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/01/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/15");

  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:"^20.1060a|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');
}