EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-2695)

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

include('compat.inc');

if (description)
{
  script_id(326590);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/14");

  script_cve_id(
    "CVE-2026-23243",
    "CVE-2026-31449",
    "CVE-2026-31450",
    "CVE-2026-31504",
    "CVE-2026-31586",
    "CVE-2026-31588",
    "CVE-2026-31673",
    "CVE-2026-31674",
    "CVE-2026-31678",
    "CVE-2026-31759",
    "CVE-2026-43033",
    "CVE-2026-43281",
    "CVE-2026-43503",
    "CVE-2026-46333"
  );

  script_name(english:"EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-2695)");

  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 kernel packages installed, the EulerOS installation on the remote host is affected by
the following vulnerabilities :

    net: skbuff: propagate shared-frag marker through frag-transfer helpers(CVE-2026-43503)

    mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()(CVE-2026-43281)

    ptrace: slightly saner #39;get_dumpable()#39; logic(CVE-2026-46333)

    crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption(CVE-2026-43033)

    usb: ulpi: fix double free in ulpi_register_interface() error path(CVE-2026-31759)

    openvswitch: defer tunnel netdev_put to RCU release(CVE-2026-31678)

    KVM: x86: Use scratch field in MMIO fragment to hold small write values(CVE-2026-31588)

    af_unix: read UNIX_DIAG_VFS data under unix_state_lock(CVE-2026-31673)

    mm: blk-cgroup: fix use-after-free in cgwb_release_workfn()(CVE-2026-31586)

    ext4: publish jinode after initialization(CVE-2026-31450)

    ext4: validate p_idx bounds in ext4_ext_correct_indexes(CVE-2026-31449)

    net: fix fanout UAF in packet_release() via NETDEV_UP race(CVE-2026-31504)

    netfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check()(CVE-2026-31674)

    RDMA/umad: Reject negative data_len in ib_umad_write(CVE-2026-23243)

Tenable has extracted the preceding description block directly from the EulerOS kernel 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-2026-2695
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?dcd6b99d");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel 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:F/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:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-31759");

  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:"2026/03/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bpftool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-abi-stablelists");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-perf");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  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/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 SP10");

var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(10)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP10");

if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP10", "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 = [
  "bpftool-4.19.90-vhulk2211.3.0.h2169.eulerosv2r10",
  "kernel-4.19.90-vhulk2211.3.0.h2169.eulerosv2r10",
  "kernel-abi-stablelists-4.19.90-vhulk2211.3.0.h2169.eulerosv2r10",
  "kernel-tools-4.19.90-vhulk2211.3.0.h2169.eulerosv2r10",
  "kernel-tools-libs-4.19.90-vhulk2211.3.0.h2169.eulerosv2r10",
  "kernel-tools-libs-devel-4.19.90-vhulk2211.3.0.h2169.eulerosv2r10",
  "perf-4.19.90-vhulk2211.3.0.h2169.eulerosv2r10",
  "python3-perf-4.19.90-vhulk2211.3.0.h2169.eulerosv2r10"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"10", 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, "kernel");
}