EulerOS Virtualization 2.12.0 : python3 (EulerOS-SA-2026-1512)

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

include('compat.inc');

if (description)
{
  script_id(302710);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/17");

  script_cve_id(
    "CVE-2024-5642",
    "CVE-2025-1795",
    "CVE-2025-4138",
    "CVE-2025-4330",
    "CVE-2025-4435",
    "CVE-2025-4516",
    "CVE-2025-4517",
    "CVE-2025-6069",
    "CVE-2025-8194",
    "CVE-2025-8291",
    "CVE-2025-12084",
    "CVE-2025-13836",
    "CVE-2025-13837"
  );

  script_name(english:"EulerOS Virtualization 2.12.0 : python3 (EulerOS-SA-2026-1512)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the python3 packages installed, the EulerOS Virtualization installation on the remote host
is affected by the following vulnerabilities :

    When building nested elements using xml.dom.minidom methods such as appendChild() that have a dependency
    on _clear_id_cache() the algorithm is quadratic. Availability can be impacted when building excessively
    nested documents.(CVE-2025-12084)

    The 'zipfile' module would not check the validity of the ZIP64 End of Central Directory (EOCD) Locator
    record offset value would not be used to locate the ZIP64 EOCD record, instead the ZIP64 EOCD record would
    be assumed to be the previous record in the ZIP archive. This could be abused to create ZIP archives that
    are handled differently by the 'zipfile' module compared to other ZIP implementations.Remediation
    maintains this behavior, but checks that the offset specified in the ZIP64 EOCD Locator record matches the
    expected value.(CVE-2025-8291)

    CPython 3.9 and earlier doesn't disallow configuring an empty list ('[]') for
    SSLContext.set_npn_protocols() which is an invalid value for the underlying OpenSSL API. This results in a
    buffer over-read when NPN is used (see CVE-2024-5535 for OpenSSL). This vulnerability is of low severity
    due to NPN being not widely used and specifying an empty list likely being uncommon in-practice (typically
    a protocol name would be configured).(CVE-2024-5642)

    When reading an HTTP response from a server, if no read amount is specified, the default behavior will be
    to use Content-Length. This allows a malicious server to cause the client to read large amounts of data
    into memory, potentially causing OOM or other DoS.(CVE-2025-13836)

    When loading a plist file, the plistlib module reads data in size specified by the file itself, meaning a
    malicious file can cause OOM and DoS issues(CVE-2025-13837)

    The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted
    malformed inputs potentially leading to amplified denial-of-service.(CVE-2025-6069)

    During an address list folding when a separating comma ends up on a folded line and that line is to be
    unicode-encoded then the separator itself is also unicode-encoded. Expected behavior is that the
    separating comma remains a plan comma. This can result in the address header being misinterpreted by some
    mail servers.(CVE-2025-1795)

    There is an issue in CPython when using `bytes.decode('unicode_escape', error='ignore|replace')`. If you
    are not using the 'unicode_escape' encoding or an error handler your usage is not affected. To work-around
    this issue you may stop using the error= handler and instead wrap the bytes.decode() call in a try-except
    catching the DecodeError.(CVE-2025-4516)

    Allows the extraction filter to be ignored, allowing symlink targets to point outside the destination
    directory, and the modification of some file metadata.You are affected by this vulnerability if using the
    tarfilemodule to extract untrusted tar archives using TarFile.extractall()or TarFile.extract()using
    the filter=parameter with a value of 'data'or 'tar'. See the tarfile  extraction filters documentation
    https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter for more information.Note that
    for Python 3.14 or later the default value of filter=changed from 'no filtering' to `'data', so if you
    are relying on this new default behavior then your usage is also affected.Note that none of these
    vulnerabilities significantly affect the installation of source distributions which are tar archives as
    source distributions already allow arbitrary code execution during the build process. However when
    evaluating source distributions it's important to avoid installing source distributions with suspicious
    links.(CVE-2025-4330)

    Allows the extraction filter to be ignored, allowing symlink targets to point outside the destination
    directory, and the modification of some file metadata.You are affected by this vulnerability if using the
    tarfilemodule to extract untrusted tar archives using TarFile.extractall()or TarFile.extract()using
    the filter=parameter with a value of 'data'or 'tar'. See the tarfile  extraction filters documentation
    https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter for more information.Note that
    for Python 3.14 or later the default value of filter=changed from 'no filtering' to `'data', so if you
    are relying on this new default behavior then your usage is also affected.Note that none of these
    vulnerabilities significantly affect the installation of source distributions which are tar archives as
    source distributions already allow arbitrary code execution during the build process. However when
    evaluating source distributions it's important to avoid installing source distributions with suspicious
    links.(CVE-2025-4138)

    There is a defect in the CPython tarfile module affecting the TarFile extraction and entry
    enumeration APIs. The tar implementation would process tar archives with negative offsets without error,
    resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives. This
    vulnerability can be mitigated by including the following patch after importing the tarfile
    module: https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1(CVE-2025-8194)

    Allows arbitrary filesystem writes outside the extraction directory during extraction with filter='data'.
    You are affected by this vulnerability if using the tarfilemodule to extract untrusted tar archives
    using TarFile.extractall()or TarFile.extract()using the filter=parameter with a value of 'data'or
    'tar'. See the tarfile extraction filters documentation
    https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter for more information. Note that
    for Python 3.14 or later the default value of filter=changed from 'no filtering' to `'data', so if you
    are relying on this new default behavior then your usage is also affected. Note that none of these
    vulnerabilities significantly affect the installation of source distributions which are tar archives as
    source distributions already allow arbitrary code execution during the build process. However when
    evaluating source distributions it's important to avoid installing source distributions with suspicious
    links.(CVE-2025-4517)

    When using a TarFile.errorlevel = 0and extracting with a filter the documented behavior is that any
    filtered members would be skipped and not extracted. However the actual behavior of TarFile.errorlevel =
    0in affected versions is that the member would still be extracted and not skipped.(CVE-2025-4435)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization python3 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-2026-1512
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6f178137");
  script_set_attribute(attribute:"solution", value:
"Update the affected python3 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/I:N/A:H");
  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:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-13836");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/06/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/03/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/03/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-fgo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-unversioned-command");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.12.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "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 (uvp != "2.12.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.12.0");
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$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "x86" >!< cpu) audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

var flag = 0;

var pkgs = [
  "python3-3.9.9-21.h21.eulerosv2r12",
  "python3-fgo-3.9.9-21.h21.eulerosv2r12",
  "python3-unversioned-command-3.9.9-21.h21.eulerosv2r12"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) 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, "python3");
}