EulerOS Virtualization 2.11.0 : python3 (EulerOS-SA-2026-3543)

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

include('compat.inc');

if (description)
{
  script_id(347216);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/18");

  script_cve_id(
    "CVE-2023-27043",
    "CVE-2024-0397",
    "CVE-2024-3219",
    "CVE-2024-4032",
    "CVE-2024-5642",
    "CVE-2024-6232",
    "CVE-2024-6923",
    "CVE-2024-7592",
    "CVE-2024-8088",
    "CVE-2024-9287",
    "CVE-2024-11168",
    "CVE-2025-0938",
    "CVE-2025-1795",
    "CVE-2025-4138",
    "CVE-2025-4330",
    "CVE-2025-4435",
    "CVE-2025-4516",
    "CVE-2025-4517",
    "CVE-2025-6069",
    "CVE-2025-6075",
    "CVE-2025-8194",
    "CVE-2025-8291",
    "CVE-2025-12084",
    "CVE-2025-13836",
    "CVE-2025-13837",
    "CVE-2026-0672",
    "CVE-2026-0865",
    "CVE-2026-1299"
  );
  script_xref(name:"IAVA", value:"2023-A-0442-S");
  script_xref(name:"IAVA", value:"2024-A-0748-S");
  script_xref(name:"IAVA", value:"2025-A-0444-S");
  script_xref(name:"IAVA", value:"2026-A-0142-S");

  script_name(english:"EulerOS Virtualization 2.11.0 : python3 (EulerOS-SA-2026-3543)");

  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 :

    A defect was discovered in the Python ssl module where there is a memory race condition with the
    ssl.SSLContext methods cert_store_stats() and get_ca_certs(). The race condition can be
    triggered if the methods are called at the same time as certificates are loaded into the SSLContext,such
    as during the TLS handshake with a certificate directory configured.This issue is fixed in CPython
    3.10.14, 3.11.9, 3.12.3, and 3.13.0a5.(CVE-2024-0397)

    The ipaddress module contained incorrect information about whether certain IPv4 and IPv6 addresses
    were designated as globally reachable or private. This affected the is_private and is_global
    properties of the ipaddress.IPv4Address, ipaddress.IPv4Network, ipaddress.IPv6Address, and
    ipaddress.IPv6Network classes, where values wouldnt be returned in accordance with the latest
    information from the IANA Special-Purpose Address Registries.CPython 3.12.4 and 3.13.0a6 contain updated
    information from these registries and thus have the intended behavior.(CVE-2024-4032)

    There is a HIGH severity vulnerability affecting the CPython 'zipfile' module affecting 'zipfile.Path'.
    Note that the more common API 'zipfile.ZipFile' class is unaffected.When iterating over names of entries
    in a zip archive (for example, methods of 'zipfile.Path' like 'namelist()', 'iterdir()', etc) the process
    can be put into an infinite loop with a maliciously crafted zip archive. This defect applies when reading
    only metadata or extracting the contents of the zip archive. Programs that are not handling user-
    controlled zip archives are not affected.(CVE-2024-8088)

    There is a MEDIUM severity vulnerability affecting CPython.The email module didnt properly quote
    newlines for email headers when serializing an email message allowing for header injection when an email
    is serialized.(CVE-2024-6923)

    There is a LOW severity vulnerability affecting CPython, specifically the 'http.cookies' standard library
    module.When parsing cookies that contained backslashes for quoted characters in the cookie value, the
    parser would use an algorithm with quadratic complexity, resulting in excess CPU resources being used
    while parsing the value.(CVE-2024-7592)

    There is a MEDIUM severity vulnerability affecting CPython.Regular expressions that allowed excessive
    backtracking during tarfile.TarFile header parsing are vulnerable to ReDoS via specifically-crafted tar
    archives.(CVE-2024-6232)

    The  socket module provides a pure-Python fallback to the socket.socketpair() function for platforms
    that dont support AF_UNIX, such as Windows. This pure-Python implementation uses AF_INET or AF_INET6 to
    create a local connected pair of sockets. The connection between the two sockets was not verified before
    passing the two sockets back to the user, which leaves the server socket vulnerable to a connection race
    from a malicious local peer.Platforms that support AF_UNIX such as Linux and macOS are not affected by
    this vulnerability. Versions prior to CPython 3.5 are not affected due to the vulnerable API not being
    included.(CVE-2024-3219)

    The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special
    character. The wrong portion of an RFC2822 header is identified as the value of the addr-spec. In some
    applications, an attacker can bypass a protection mechanism in which application access is granted only
    after verifying receipt of e-mail to a specific domain (e.g., only @company.example.com addresses may be
    used for signup). This occurs in email/_parseaddr.py in recent versions of Python.(CVE-2023-27043)

    A vulnerability has been found in the CPython `venv` module and CLI where path names provided when
    creating a virtual environment were not quoted properly, allowing the creator to inject commands into
    virtual environment 'activation' scripts (ie 'source venv/bin/activate'). This means that attacker-
    controlled virtual environments are able to run commands when the virtual environment is activated.
    Virtual environments which are not created by an attacker or which aren't activated before being used (ie
    './venv/bin/python') are not affected.(CVE-2024-9287)

    The urllib.parse.urlsplit() and urlparse() functions improperly validated bracketed hosts (`[]`), allowing
    hosts that weren't IPv6 or IPvFuture. This behavior was not conformant to RFC 3986 and potentially enabled
    SSRF if a URL is processed by more than one URL parser.(CVE-2024-11168)

    The Python standard library functions `urllib.parse.urlsplit` and `urlparse` accepted domain names that
    included square brackets which isn't valid according to RFC 3986. Square brackets are only meant to be
    used as delimiters for specifying IPv6 and IPvFuture hosts in URLs. This could result in differential
    parsing across the Python URL parser and other specification-compliant URL parsers.(CVE-2025-0938)

    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)

    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)

    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)

    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)

    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)

    The 'zipfile' module would not check the validity of the ZIP64 End ofCentral 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 rchive. 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)

    The email module, specifically the 'BytesGenerator' class, didn't properly quote newlines for email
    headers when serializing an email message allowing for header injection when an email is serialized. This
    is only applicable if using 'LiteralHeader' writing headers that don't respect email folding rules, the
    new behavior will reject the incorrectly folded headers in 'BytesGenerator'.(CVE-2026-1299)

    When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP
    headers into messages. Patch rejects all control characters within cookie names, values, and
    parameters.(CVE-2026-0672)

    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)

    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 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)

    If the value passed to os.path.expandvars() is user-controlled a performance degradation is possible when
    expanding environment variables.(CVE-2025-6075)

    User-controlled header names and values containing newlines can allow injecting HTTP
    headers.(CVE-2026-0865)

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-2026-3543
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?18a8b693");
  script_set_attribute(attribute:"solution", value:
"Update the affected python3 packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/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:L/AC:L/PR:L/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:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_supplemental", value:"CVSS:4.0/S:N/AU:N/R:U/RE:L");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-9287");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2024-8088");

  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:"2023/04/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/18");

  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-unversioned-command");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.11.0");
  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_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 != "2.11.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.11.0");
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 = [
  "python3-3.9.9-7.h40.eulerosv2r11",
  "python3-unversioned-command-3.9.9-7.h40.eulerosv2r11"
];

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