EulerOS 2.0 SP11 : golang (EulerOS-SA-2026-4323)

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

include('compat.inc');

if (description)
{
  script_id(364912);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/12");

  script_cve_id(
    "CVE-2025-61732",
    "CVE-2026-33814",
    "CVE-2026-39819",
    "CVE-2026-39820",
    "CVE-2026-39823",
    "CVE-2026-39826",
    "CVE-2026-42499"
  );
  script_xref(name:"IAVB", value:"2026-B-0040-S");
  script_xref(name:"IAVB", value:"2026-B-0120");

  script_name(english:"EulerOS 2.0 SP11 : golang (EulerOS-SA-2026-4323)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the golang packages installed, the EulerOS installation on the remote host is affected by
the following vulnerabilities :

    Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC
    5322.(CVE-2026-42499)

    If a trusted template author were to write a script tag containing an empty 'type' attribute or a
    'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data
    passed into the script block.(CVE-2026-39826)

    The 'go bug' command writes to two files with predictable names in the system temporary directory (for
    example, '/tmp'). An attacker with access to the temporary directory can create a symlink in one of these
    names, causing 'go bug' to overwrite the target of the symlink.(CVE-2026-39819)

    When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION
    frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.(CVE-2026-33814)

    A discrepancy between how Go and C/C++ comments were parsed allowed for code smuggling into the resulting
    cgo binary.(CVE-2025-61732)

    Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive
    CPU exhaustion and memory allocations.(CVE-2026-39820)

    CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a meta tag's
    content attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of
    the content attribute, the escaper would fail to similarly escape it, leading to
    XSS.(CVE-2026-39823)

Tenable has extracted the preceding description block directly from the EulerOS golang 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://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2026-4323
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0cb92252");
  script_set_attribute(attribute:"solution", value:
"Update the affected golang packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:S/C:P/I:C/A:N");
  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:L/UI:N/S:U/C:L/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-2026-39819");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/02/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:golang");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:golang-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:golang-help");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei 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/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  exit(0);
}

include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var _release = get_kb_item("Host/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (_release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP11");

var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(11)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP11");

if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP11", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "golang-1.17.3-1.h52.eulerosv2r11",
  "golang-devel-1.17.3-1.h52.eulerosv2r11",
  "golang-help-1.17.3-1.h52.eulerosv2r11"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"11", reference:pkg)) 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, "golang");
}