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RHEL 10 : linux-sgx (RHSA-2026:18480)

🗓️ 19 May 2026 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 12 Views

RHEL 10 SGX fix addresses DoS in array parsing, tar overwrites, symlink poisoning, Unicode path collision, and prototype pollution.

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##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2026:18480. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
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  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/19");

  script_cve_id(
    "CVE-2025-13465",
    "CVE-2025-15284",
    "CVE-2026-23745",
    "CVE-2026-23950",
    "CVE-2026-24842"
  );
  script_xref(name:"RHSA", value:"2026:18480");

  script_name(english:"RHEL 10 : linux-sgx (RHSA-2026:18480)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for linux-sgx.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2026:18480 advisory.

    The Intel SGX SDK is a collection of APIs, libraries, documentations and tools that allow software
    developers to create and debug Intel SGX enabled applications in C/C++.

    Security Fix(es):

    * qs: qs: Denial of Service via improper input validation in array parsing (CVE-2025-15284)

    * node-tar: tar: node-tar: Arbitrary file overwrite and symlink poisoning via unsanitized linkpaths in
    archives (CVE-2026-23745)

    * node-tar: tar: node-tar: Arbitrary file overwrite via Unicode path collision race condition
    (CVE-2026-23950)

    * lodash: prototype pollution in _.unset and _.omit functions (CVE-2025-13465)

    * node-tar: tar: node-tar: Arbitrary file creation via path traversal bypass in hardlink security check
    (CVE-2026-24842)

    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.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 10 Release Notes
    linked from 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.");
  # https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/10/html/10.2_release_notes/index
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?61671f2f");
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  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2425946");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2430538");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2431036");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2431740");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2433645");
  script_set_attribute(attribute:"see_also", value:"https://issues.redhat.com/browse/RHEL-110112");
  script_set_attribute(attribute:"see_also", value:"https://issues.redhat.com/browse/RHEL-121612");
  script_set_attribute(attribute:"see_also", value:"https://issues.redhat.com/browse/RHEL-140108");
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  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?21ef649f");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2026:18480");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL linux-sgx package based on the guidance in RHSA-2026:18480.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N");
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  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(22, 59, 367, 770, 1321);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/12/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/05/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/05/19");

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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:linux-sgx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sgx-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sgx-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sgx-mpa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sgx-pccs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sgx-pccs-admin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sgx-pckid-tool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:tdx-qgs");
  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) 2026 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);
}


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include('rhel.inc');

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if (isnull(os_product) || 'Red Hat' >!< os_product) audit(AUDIT_OS_NOT, 'Red Hat');
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];

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 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 repo_relative_urls;
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;
  }

  if (!empty_or_null(constraint['repo_relative_urls'])) repo_relative_urls = constraint['repo_relative_urls'];

  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 &&
        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, 'sgx-common / sgx-libs / sgx-mpa / sgx-pccs / sgx-pccs-admin / etc');
}

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19 May 2026 00:00Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.16.1 - 8.8
CVSS 48.2
EPSS0.01535
SSVC
12