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RHEL 8 : libxml2 (RHSA-2025:2686)

🗓️ 15 Mar 2025 00:00:00Reported by TenableType 
nessus
 nessus🔗 www.tenable.com👁 33 Views

RHEL 8 libxml2 library has multiple vulnerabilities requiring urgent security attention and fixes.

Related
Refs
Code
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: A vulnerability in Watson NLP affects IBM Robotic Process Automation (CVE-2024-56171).
13 Jun 202501:58
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in libxml2 library (CVE-2024-56171, CVE-2025-24928) affect Power HMC.
7 Jul 202505:41
–ibm
IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities in IBM CloudPak for AIOps
25 Jun 202513:52
–ibm
IBM Security Bulletins		Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to a' use after free' condition in libxml2 [CVE-2024-56171]
13 Jun 202516:07
–ibm
IBM Security Bulletins		Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to a stack-based buffer overflow in libxml2 [CVE-2025-24928]
13 Jun 202516:05
–ibm
IBM Security Bulletins		Security Bulletin: libxml2 before 2.12.10 has a use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c, affects watsonx.data
30 Jun 202510:33
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities have been identified with the DS8900F and DS8A00 Hardware Management Console (HMC)
30 Sep 202508:36
–ibm
IBM Security Bulletins		Security Bulletin: A security vulnerability has been discovered in IBM Verify Identity Access OIDC Provider (CVE-2024-56171)
15 Aug 202500:26
–ibm
IBM Security Bulletins		Security Bulletin: Multiple security vulnerabilities in RedHat UBI affect IBM Robotic Process Automation for Cloud Pak
11 Jun 202501:49
–ibm
IBM Security Bulletins		Security Bulletin: IBM QRadar SIEM contains multiple vulnerabilities
26 Apr 202514:56
–ibm
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2025:2686. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(232795);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/06/05");

  script_cve_id("CVE-2024-56171", "CVE-2025-24928");
  script_xref(name:"RHSA", value:"2025:2686");

  script_name(english:"RHEL 8 : libxml2 (RHSA-2025:2686)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for libxml2.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2025:2686 advisory.

    The libxml2 library is a development toolbox providing the implementation of various XML standards.

    Security Fix(es):

    * libxml2: Use-After-Free in libxml2 (CVE-2024-56171)

    * libxml2: Stack-based buffer overflow in xmlSnprintfElements of libxml2 (CVE-2025-24928)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and
    other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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://access.redhat.com/security/updates/classification/#important");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2346416");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2346421");
  # https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_2686.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fb0bff55");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2025:2686");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL libxml2 package based on the guidance in RHSA-2025:2686.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:C/I:C/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:H/PR:N/UI:N/S:C/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-56171");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2025-24928");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(121, 416);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/02/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/03/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_eus:8.10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libxml2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libxml2-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python3-libxml2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Red Hat 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_info.nasl", "redhat_repos.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm2.inc');
include('rhel.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) || 'Red Hat' >!< os_product) audit(AUDIT_OS_NOT, 'Red Hat');
var os_release = get_kb_item('installed_os/local/SSH/0/release');
if (isnull(os_release)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
if (!rhel_check_release(operator: 'ge', os_version: os_release, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.x', 'Red Hat ' + os_release);

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

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

var constraints = [
  {
    'release': '8',
    'repo_relative_urls': [
      'content/dist/rhel8/8.10/aarch64/appstream/debug',
      'content/dist/rhel8/8.10/aarch64/appstream/os',
      'content/dist/rhel8/8.10/aarch64/appstream/source/SRPMS',
      'content/dist/rhel8/8.10/aarch64/baseos/debug',
      'content/dist/rhel8/8.10/aarch64/baseos/os',
      'content/dist/rhel8/8.10/aarch64/baseos/source/SRPMS',
      'content/dist/rhel8/8.10/ppc64le/appstream/debug',
      'content/dist/rhel8/8.10/ppc64le/appstream/os',
      'content/dist/rhel8/8.10/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel8/8.10/ppc64le/baseos/debug',
      'content/dist/rhel8/8.10/ppc64le/baseos/os',
      'content/dist/rhel8/8.10/ppc64le/baseos/source/SRPMS',
      'content/dist/rhel8/8.10/s390x/appstream/debug',
      'content/dist/rhel8/8.10/s390x/appstream/os',
      'content/dist/rhel8/8.10/s390x/appstream/source/SRPMS',
      'content/dist/rhel8/8.10/s390x/baseos/debug',
      'content/dist/rhel8/8.10/s390x/baseos/os',
      'content/dist/rhel8/8.10/s390x/baseos/source/SRPMS',
      'content/dist/rhel8/8.10/x86_64/appstream/debug',
      'content/dist/rhel8/8.10/x86_64/appstream/os',
      'content/dist/rhel8/8.10/x86_64/appstream/source/SRPMS',
      'content/dist/rhel8/8.10/x86_64/baseos/debug',
      'content/dist/rhel8/8.10/x86_64/baseos/os',
      'content/dist/rhel8/8.10/x86_64/baseos/source/SRPMS',
      'content/dist/rhel8/8.6/aarch64/appstream/debug',
      'content/dist/rhel8/8.6/aarch64/appstream/os',
      'content/dist/rhel8/8.6/aarch64/appstream/source/SRPMS',
      'content/dist/rhel8/8.6/aarch64/baseos/debug',
      'content/dist/rhel8/8.6/aarch64/baseos/os',
      'content/dist/rhel8/8.6/aarch64/baseos/source/SRPMS',
      'content/dist/rhel8/8.6/ppc64le/appstream/debug',
      'content/dist/rhel8/8.6/ppc64le/appstream/os',
      'content/dist/rhel8/8.6/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel8/8.6/ppc64le/baseos/debug',
      'content/dist/rhel8/8.6/ppc64le/baseos/os',
      'content/dist/rhel8/8.6/ppc64le/baseos/source/SRPMS',
      'content/dist/rhel8/8.6/s390x/appstream/debug',
      'content/dist/rhel8/8.6/s390x/appstream/os',
      'content/dist/rhel8/8.6/s390x/appstream/source/SRPMS',
      'content/dist/rhel8/8.6/s390x/baseos/debug',
      'content/dist/rhel8/8.6/s390x/baseos/os',
      'content/dist/rhel8/8.6/s390x/baseos/source/SRPMS',
      'content/dist/rhel8/8.6/x86_64/appstream/debug',
      'content/dist/rhel8/8.6/x86_64/appstream/os',
      'content/dist/rhel8/8.6/x86_64/appstream/source/SRPMS',
      'content/dist/rhel8/8.6/x86_64/baseos/debug',
      'content/dist/rhel8/8.6/x86_64/baseos/os',
      'content/dist/rhel8/8.6/x86_64/baseos/source/SRPMS',
      'content/dist/rhel8/8.8/aarch64/appstream/debug',
      'content/dist/rhel8/8.8/aarch64/appstream/os',
      'content/dist/rhel8/8.8/aarch64/appstream/source/SRPMS',
      'content/dist/rhel8/8.8/aarch64/baseos/debug',
      'content/dist/rhel8/8.8/aarch64/baseos/os',
      'content/dist/rhel8/8.8/aarch64/baseos/source/SRPMS',
      'content/dist/rhel8/8.8/ppc64le/appstream/debug',
      'content/dist/rhel8/8.8/ppc64le/appstream/os',
      'content/dist/rhel8/8.8/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel8/8.8/ppc64le/baseos/debug',
      'content/dist/rhel8/8.8/ppc64le/baseos/os',
      'content/dist/rhel8/8.8/ppc64le/baseos/source/SRPMS',
      'content/dist/rhel8/8.8/s390x/appstream/debug',
      'content/dist/rhel8/8.8/s390x/appstream/os',
      'content/dist/rhel8/8.8/s390x/appstream/source/SRPMS',
      'content/dist/rhel8/8.8/s390x/baseos/debug',
      'content/dist/rhel8/8.8/s390x/baseos/os',
      'content/dist/rhel8/8.8/s390x/baseos/source/SRPMS',
      'content/dist/rhel8/8.8/x86_64/appstream/debug',
      'content/dist/rhel8/8.8/x86_64/appstream/os',
      'content/dist/rhel8/8.8/x86_64/appstream/source/SRPMS',
      'content/dist/rhel8/8.8/x86_64/baseos/debug',
      'content/dist/rhel8/8.8/x86_64/baseos/os',
      'content/dist/rhel8/8.8/x86_64/baseos/source/SRPMS',
      'content/dist/rhel8/8.9/aarch64/appstream/debug',
      'content/dist/rhel8/8.9/aarch64/appstream/os',
      'content/dist/rhel8/8.9/aarch64/appstream/source/SRPMS',
      'content/dist/rhel8/8.9/aarch64/baseos/debug',
      'content/dist/rhel8/8.9/aarch64/baseos/os',
      'content/dist/rhel8/8.9/aarch64/baseos/source/SRPMS',
      'content/dist/rhel8/8.9/ppc64le/appstream/debug',
      'content/dist/rhel8/8.9/ppc64le/appstream/os',
      'content/dist/rhel8/8.9/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel8/8.9/ppc64le/baseos/debug',
      'content/dist/rhel8/8.9/ppc64le/baseos/os',
      'content/dist/rhel8/8.9/ppc64le/baseos/source/SRPMS',
      'content/dist/rhel8/8.9/s390x/appstream/debug',
      'content/dist/rhel8/8.9/s390x/appstream/os',
      'content/dist/rhel8/8.9/s390x/appstream/source/SRPMS',
      'content/dist/rhel8/8.9/s390x/baseos/debug',
      'content/dist/rhel8/8.9/s390x/baseos/os',
      'content/dist/rhel8/8.9/s390x/baseos/source/SRPMS',
      'content/dist/rhel8/8.9/x86_64/appstream/debug',
      'content/dist/rhel8/8.9/x86_64/appstream/os',
      'content/dist/rhel8/8.9/x86_64/appstream/source/SRPMS',
      'content/dist/rhel8/8.9/x86_64/baseos/debug',
      'content/dist/rhel8/8.9/x86_64/baseos/os',
      'content/dist/rhel8/8.9/x86_64/baseos/source/SRPMS',
      'content/dist/rhel8/8/aarch64/appstream/debug',
      'content/dist/rhel8/8/aarch64/appstream/os',
      'content/dist/rhel8/8/aarch64/appstream/source/SRPMS',
      'content/dist/rhel8/8/aarch64/baseos/debug',
      'content/dist/rhel8/8/aarch64/baseos/os',
      'content/dist/rhel8/8/aarch64/baseos/source/SRPMS',
      'content/dist/rhel8/8/ppc64le/appstream/debug',
      'content/dist/rhel8/8/ppc64le/appstream/os',
      'content/dist/rhel8/8/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel8/8/ppc64le/baseos/debug',
      'content/dist/rhel8/8/ppc64le/baseos/os',
      'content/dist/rhel8/8/ppc64le/baseos/source/SRPMS',
      'content/dist/rhel8/8/s390x/appstream/debug',
      'content/dist/rhel8/8/s390x/appstream/os',
      'content/dist/rhel8/8/s390x/appstream/source/SRPMS',
      'content/dist/rhel8/8/s390x/baseos/debug',
      'content/dist/rhel8/8/s390x/baseos/os',
      'content/dist/rhel8/8/s390x/baseos/source/SRPMS',
      'content/dist/rhel8/8/x86_64/appstream/debug',
      'content/dist/rhel8/8/x86_64/appstream/os',
      'content/dist/rhel8/8/x86_64/appstream/source/SRPMS',
      'content/dist/rhel8/8/x86_64/baseos/debug',
      'content/dist/rhel8/8/x86_64/baseos/os',
      'content/dist/rhel8/8/x86_64/baseos/source/SRPMS',
      'content/public/ubi/dist/ubi8/8/aarch64/appstream/debug',
      'content/public/ubi/dist/ubi8/8/aarch64/appstream/os',
      'content/public/ubi/dist/ubi8/8/aarch64/appstream/source/SRPMS',
      'content/public/ubi/dist/ubi8/8/aarch64/baseos/debug',
      'content/public/ubi/dist/ubi8/8/aarch64/baseos/os',
      'content/public/ubi/dist/ubi8/8/aarch64/baseos/source/SRPMS',
      'content/public/ubi/dist/ubi8/8/ppc64le/appstream/debug',
      'content/public/ubi/dist/ubi8/8/ppc64le/appstream/os',
      'content/public/ubi/dist/ubi8/8/ppc64le/appstream/source/SRPMS',
      'content/public/ubi/dist/ubi8/8/ppc64le/baseos/debug',
      'content/public/ubi/dist/ubi8/8/ppc64le/baseos/os',
      'content/public/ubi/dist/ubi8/8/ppc64le/baseos/source/SRPMS',
      'content/public/ubi/dist/ubi8/8/s390x/appstream/debug',
      'content/public/ubi/dist/ubi8/8/s390x/appstream/os',
      'content/public/ubi/dist/ubi8/8/s390x/appstream/source/SRPMS',
      'content/public/ubi/dist/ubi8/8/s390x/baseos/debug',
      'content/public/ubi/dist/ubi8/8/s390x/baseos/os',
      'content/public/ubi/dist/ubi8/8/s390x/baseos/source/SRPMS',
      'content/public/ubi/dist/ubi8/8/x86_64/appstream/debug',
      'content/public/ubi/dist/ubi8/8/x86_64/appstream/os',
      'content/public/ubi/dist/ubi8/8/x86_64/appstream/source/SRPMS',
      'content/public/ubi/dist/ubi8/8/x86_64/baseos/debug',
      'content/public/ubi/dist/ubi8/8/x86_64/baseos/os',
      'content/public/ubi/dist/ubi8/8/x86_64/baseos/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'libxml2-2.9.7-19.el8_10', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libxml2-devel-2.9.7-19.el8_10', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-libxml2-2.9.7-19.el8_10', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
var repo_relative_urls;

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['repo_relative_urls'])) repo_relative_urls = constraint['repo_relative_urls'];

  foreach var pkg ( constraint['pkgs'] ) {
    var reference = NULL;
    var sp = NULL;
    var _cpu = NULL;
    var el_string = NULL;
    var rpm_spec_vers_cmp = NULL;
    var epoch = NULL;
    var allowmaj = NULL;
    var exists_check = NULL;
    var 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 &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!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)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : extra
  );
  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 / python3-libxml2');
}

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05 Jun 2025 00:00Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.17.8 - 9.8
EPSS0.0113
SSVC
rhel 8libxml2vulnerabilitiesuse-after-freebuffer overflowsecurity advisory
33