MiracleLinux 4 : libxml2-2.7.6-4.0.1.AXS4 (AXSA:2012-10:01)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Miracle Linux Security Advisory AXSA:2012-10:01.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(284198);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/14");

  script_cve_id(
    "CVE-2010-4008",
    "CVE-2010-4494",
    "CVE-2011-0216",
    "CVE-2011-1944",
    "CVE-2011-2821",
    "CVE-2011-2834"
  );

  script_name(english:"MiracleLinux 4 : libxml2-2.7.6-4.0.1.AXS4 (AXSA:2012-10:01)");

  script_set_attribute(attribute:"synopsis", value:
"The remote MiracleLinux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the
AXSA:2012-10:01 advisory.

    This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML
    files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse
    time or later once the document has been modified. The output can be a simple SAX stream or and in-memory
    DOM like representations. In this case one can use the built-in XPath and XPointer implementation to
    select subnodes or ranges. A flexible Input/Output mechanism is available, with existing HTTP and FTP
    modules and combined to an URI library.
    Security issues fixed with this release:
    CVE-2010-4008
    libxml2 before 2.7.8, as used in Google Chrome before 7.0.517.44, Apple Safari 5.0.2 and earlier, and
    other products, reads from invalid memory locations during processing of malformed XPath expressions,
    which allows context-dependent attackers to cause a denial of service (application crash) via a crafted
    XML document.
    CVE-2010-4494
    Double free vulnerability in libxml2 2.7.8 and other versions, as used in Google Chrome before 8.0.552.215
    and other products, allows remote attackers to cause a denial of service or possibly have unspecified
    other impact via vectors related to XPath handling.
    CVE-2011-0216
    Off-by-one error in libxml in Apple Safari before 5.0.6 allows remote attackers to execute arbitrary code
    or cause a denial of service (heap-based buffer overflow and application crash) via a crafted web site.
    CVE-2011-1944
    Integer overflow in xpath.c in libxml2 2.6.x through 2.6.32 and 2.7.x through 2.7.8, and libxml 1.8.16 and
    earlier, allows context-dependent attackers to cause a denial of service (crash) and possibly execute
    arbitrary code via a crafted XML file that triggers a heap-based buffer overflow when adding a new
    namespace node, related to handling of XPath expressions.
    CVE-2011-2821
    Double free vulnerability in libxml2, as used in Google Chrome before 13.0.782.215, allows remote
    attackers to cause a denial of service or possibly have unspecified other impact via a crafted XPath
    expression.
    CVE-2011-2834
    Double free vulnerability in libxml2, as used in Google Chrome before 14.0.835.163, allows remote
    attackers to cause a denial of service or possibly have unspecified other impact via vectors related to
    XPath handling.

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://tsn.miraclelinux.com/en/node/2499");
  script_set_attribute(attribute:"solution", value:
"Update the affected libxml2, libxml2-devel and / or libxml2-python packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2011-1944");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2011-2834");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"vendor_severity", value:"High");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/11/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/01/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:libxml2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:libxml2-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:libxml2-python");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:miracle:linux:4");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Miracle 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_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/MiracleLinux/release", "Host/MiracleLinux/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) || 'MIRACLE LINUX' >!< os_product) audit(AUDIT_OS_NOT, 'MIRACLE LINUX');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'MIRACLE LINUX');
if (! preg(pattern:"^4([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'MiracleLinux 4.x', 'MIRACLE LINUX ' + os_version);

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

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && 'ppc' >!< cpu && 's390' >!< cpu && 'x86_64' >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'MIRACLE LINUX', cpu);

var constraints = [
  {
    'release': '4',
    'pkgs': [
      {'reference':'libxml2-2.7.6-4.0.1.AXS4', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libxml2-2.7.6-4.0.1.AXS4', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libxml2-devel-2.7.6-4.0.1.AXS4', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libxml2-devel-2.7.6-4.0.1.AXS4', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libxml2-python-2.7.6-4.0.1.AXS4', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'libxml2-python-2.7.6-4.0.1.AXS4', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'}
    ]
  }
];

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, 'libxml2 / libxml2-devel / libxml2-python');
}