SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2023:4784-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2023:4784-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(186870);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/30");

  script_cve_id(
    "CVE-2023-0461",
    "CVE-2023-5717",
    "CVE-2023-31083",
    "CVE-2023-39197",
    "CVE-2023-39198",
    "CVE-2023-45863",
    "CVE-2023-45871"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2023:4784-1");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2023:4784-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLED12 / SLED_SAP12 / SLES12 / SLES_SAP12 host has packages installed that are affected by
multiple vulnerabilities as referenced in the SUSE-SU-2023:4784-1 advisory.

  - There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local
    privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or
    CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege. There is a
    use-after-free bug of icsk_ulp_data of a struct inet_connection_sock. When CONFIG_TLS is enabled, user can
    install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this
    socket is disconnected and reused as a listener. If a new socket is created from the listener, the context
    is inherited and vulnerable. The setsockopt TCP_ULP operation does not require any privilege. We recommend
    upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)

  - An issue was discovered in drivers/bluetooth/hci_ldisc.c in the Linux kernel 6.2. In hci_uart_tty_ioctl,
    there is a race condition between HCIUARTSETPROTO and HCIUARTGETPROTO. HCI_UART_PROTO_SET is set before
    hu->proto is set. A NULL pointer dereference may occur. (CVE-2023-31083)

  - A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function
    dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one
    holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a
    use-after-free issue, potentially leading to a denial of service or privilege escalation. (CVE-2023-39198)

  - An issue was discovered in lib/kobject.c in the Linux kernel before 6.2.3. With root access, an attacker
    can trigger a race condition that results in a fill_kobj_path out-of-bounds write. (CVE-2023-45863)

  - An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel
    before 6.5.3. A buffer size may not be adequate for frames larger than the MTU. (CVE-2023-45871)

  - A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf)
    component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an
    event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory
    locations outside of the allocated buffer. We recommend upgrading past commit
    32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1084909");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1176950");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1190208");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1203496");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1205462");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1208787");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1210780");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1214037");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1214285");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1214408");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1214764");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216031");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216058");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216259");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216584");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216759");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216965");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216976");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1217036");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1217087");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1217206");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1217519");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1217525");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1217603");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1217604");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1217607");
  # https://lists.suse.com/pipermail/sle-security-updates/2023-December/017319.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?26da3646");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-0461");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-31083");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-39197");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-39198");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-45863");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-45871");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-5717");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-39197");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-5717");

  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:"2023/02/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/12/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/12/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:cluster-md-kmp-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:dlm-kmp-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:gfs2-kmp-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-kgraft");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-kgraft-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-man");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-macros");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-obs-build");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-syms");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-122_186-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ocfs2-kmp-default");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2023-2024 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/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLED_SAP12|SLES12|SLES_SAP12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED12 / SLED_SAP12 / SLES12 / SLES_SAP12', 'SUSE (' + os_ver + ')');

if (!get_kb_item("Host/SuSE/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$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLED12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED12 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLED_SAP12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED_SAP12 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP12 SP5", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'kernel-default-4.12.14-122.186.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-default-base-4.12.14-122.186.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-default-devel-4.12.14-122.186.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-default-extra-4.12.14-122.186.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLED_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-default-extra-4.12.14-122.186.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-default-man-4.12.14-122.186.1', 'sp':'5', 'cpu':'s390x', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-devel-4.12.14-122.186.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-macros-4.12.14-122.186.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-obs-build-4.12.14-122.186.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-source-4.12.14-122.186.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'kernel-syms-4.12.14-122.186.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'cluster-md-kmp-default-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'dlm-kmp-default-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'gfs2-kmp-default-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'ocfs2-kmp-default-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-ha-release-12.5']},
    {'reference':'kernel-default-kgraft-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-live-patching-release-12.5']},
    {'reference':'kernel-default-kgraft-devel-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-live-patching-release-12.5']},
    {'reference':'kgraft-patch-4_12_14-122_186-default-1-8.3.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-live-patching-release-12.5']},
    {'reference':'kernel-obs-build-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5', 'sles-release-12.5']},
    {'reference':'kernel-default-extra-4.12.14-122.186.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLED12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-we-release-12.5', 'sles-release-12.5']},
    {'reference':'kernel-default-extra-4.12.14-122.186.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-we-release-12.5', 'sles-release-12.5']},
    {'reference':'kernel-default-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-default-base-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-default-devel-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-default-man-4.12.14-122.186.1', 'sp':'5', 'cpu':'s390x', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-devel-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-macros-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-source-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'kernel-syms-4.12.14-122.186.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']}
];

var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var exists_check = NULL;
  var rpm_spec_vers_cmp = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && _release) {
    if (exists_check) {
      var check_flag = 0;
      foreach var check (exists_check) {
        if (!rpm_exists(release:_release, rpm:check)) continue;
        check_flag++;
      }
      if (!check_flag) continue;
    }
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) 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, 'cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc');
}