EulerOS 2.0 SP10 : kernel (EulerOS-SA-2023-1551)

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

include('compat.inc');

if (description)
{
  script_id(172696);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/30");

  script_cve_id(
    "CVE-2022-1184",
    "CVE-2022-3105",
    "CVE-2022-3107",
    "CVE-2022-3108",
    "CVE-2022-4378",
    "CVE-2022-4662",
    "CVE-2022-20572",
    "CVE-2022-41218",
    "CVE-2022-47929",
    "CVE-2023-0394",
    "CVE-2023-1095",
    "CVE-2023-23454"
  );

  script_name(english:"EulerOS 2.0 SP10 : kernel (EulerOS-SA-2023-1551)");

  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 :

  - A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel's filesystem sub-
    component. This flaw allows a local attacker with a user privilege to cause a denial of service.
    (CVE-2022-1184)

  - In verity_target of dm-verity-target.c, there is a possible way to modify read-only files due to a missing
    permission check. This could lead to local escalation of privilege with System execution privileges
    needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid
    ID: A-234475629References: Upstream kernel (CVE-2022-20572)

  - An issue was discovered in the Linux kernel through 5.16-rc6. uapi_finalize in
    drivers/infiniband/core/uverbs_uapi.c lacks check of kmalloc_array(). (CVE-2022-3105)

  - An issue was discovered in the Linux kernel through 5.16-rc6. netvsc_get_ethtool_stats in
    drivers/net/hyperv/netvsc_drv.c lacks check of the return value of kvmalloc_array() and will cause the
    null pointer dereference. (CVE-2022-3107)

  - An issue was discovered in the Linux kernel through 5.16-rc6. kfd_parse_subtype_iolink in
    drivers/gpu/drm/amd/amdkfd/kfd_crat.c lacks check of the return value of kmemdup(). (CVE-2022-3108)

  - In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused
    by refcount races, affecting dvb_demux_open and dvb_dmxdev_release. (CVE-2022-41218)

  - A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain
    kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their
    privileges on the system. (CVE-2022-4378)

  - A flaw incorrect access control in the Linux kernel USB core subsystem was found in the way user attaches
    usb device. A local user could use this flaw to crash the system. (CVE-2022-4662)

  - In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows
    an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control
    configuration that is set up with 'tc qdisc' and 'tc class' commands. This affects qdisc_graft in
    net/sched/sch_api.c. (CVE-2022-47929)

  - A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network
    subcomponent in the Linux kernel. This flaw causes the system to crash. (CVE-2023-0394)

  - In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the
    transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list
    -- the list head is all zeroes, this results in a NULL pointer dereference. (CVE-2023-1095)

  - cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial
    of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes
    indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23454)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security
advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional
issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2023-1551
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4abd2590");
  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: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:"cvss_score_source", value:"CVE-2022-4378");

  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:"2022/06/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/03/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/03/19");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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: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) 2023 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$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "x86" >!< cpu) audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

var flag = 0;

var pkgs = [
  "kernel-4.18.0-147.5.2.19.h1152.eulerosv2r10",
  "kernel-abi-stablelists-4.18.0-147.5.2.19.h1152.eulerosv2r10",
  "kernel-tools-4.18.0-147.5.2.19.h1152.eulerosv2r10",
  "kernel-tools-libs-4.18.0-147.5.2.19.h1152.eulerosv2r10",
  "python3-perf-4.18.0-147.5.2.19.h1152.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");
}