EulerOS Virtualization 2.10.1 : glib2 (EulerOS-SA-2026-2019)

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

include('compat.inc');

if (description)
{
  script_id(319473);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/06");

  script_cve_id("CVE-2026-1484", "CVE-2026-1485", "CVE-2026-1489");

  script_name(english:"EulerOS Virtualization 2.10.1 : glib2 (EulerOS-SA-2026-2019)");

  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 glib2 package installed, the EulerOS Virtualization installation on the remote host is
affected by the following vulnerabilities :

    A flaw was found in the GLib Base64 encoding routine when processing very large input data. Due to
    incorrect use of integer types during length calculation, the library may miscalculate buffer boundaries.
    This can cause memory writes outside the allocated buffer. Applications that process untrusted or
    extremely large Base64 input using GLib may crash or behave unpredictably.(CVE-2026-1484)

    A flaw was found in Glib's content type parsing logic. This buffer underflow vulnerability occurs because
    the length of a header line is stored in a signed integer, which can lead to integer wraparound for very
    large inputs. This results in pointer underflow and out-of-bounds memory access. Exploitation requires a
    local user to install or process a specially crafted treemagic file, which can lead to local denial of
    service or application instability.(CVE-2026-1485)

    A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation
    can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an
    attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could
    cause applications utilizing GLib for string conversion to crash or become unstable.(CVE-2026-1489)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization glib2 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-2026-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2d646b34");
  script_set_attribute(attribute:"solution", value:
"Update the affected glib2 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-1489");

  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:"2026/01/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glib2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.10.1");
  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 != "2.10.1") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.10.1");
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 = [
  "glib2-2.62.5-6.h26.eulerosv2r10"
];

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, "glib2");
}