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nessusThis script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.SUSE_SU-2023-4414-1.NASL
HistoryNov 11, 2023 - 12:00 a.m.

SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2023:4414-1)

2023-11-1100:00:00
This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
17
sles15
opensuse15
kernel
cve-2023-2163
sr-ipv6
linux
divide-by-zero
deadlock
nf_tables
ebpf
sctp_mt_check
ene ub6250 reader
mmio registers
nvmet_tcp_free_crypto

CVSS3

10

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

AI Score

8.6

Confidence

High

EPSS

0.038

Percentile

92.1%

The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4414-1 advisory.

  • Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape. (CVE-2023-2163)

  • An out-of-bounds read vulnerability was found in the SR-IPv6 implementation in the Linux kernel. The flaw exists within the processing of seg6 attributes. The issue results from the improper validation of user- supplied data, which can result in a read past the end of an allocated buffer. This flaw allows a privileged local user to disclose sensitive information on affected installations of the Linux kernel.
    (CVE-2023-2860)

  • An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There is a divide-by-zero error in do_div(sz,mtd->erasesize), used indirectly by ctrl_cdev_ioctl, when mtd->erasesize is 0.
    (CVE-2023-31085)

  • The vulnerability exists due to improper event handling in Linux kernel. A malicious guest can disable paravirtualized device to cause a deadlock in a backend domain (other than dom0). (CVE-2023-34324)

  • A use-after-free vulnerability in the Linux kernel’s netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain’s owner rule can also release the objects in certain circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.
    (CVE-2023-3777)

  • A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39189)

  • An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel. (CVE-2023-39191)

  • A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39193)

  • An issue was discovered in drivers/usb/storage/ene_ub6250.c for the ENE UB6250 reader driver in the Linux kernel before 6.2.5. An object could potentially extend beyond the end of an allocation. (CVE-2023-45862)

  • An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it. (CVE-2023-46813)

  • A use-after-free vulnerability was found in drivers/nvme/target/tcp.cinnvmet_tcp_free_crypto` due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which may permit remote code execution or lead to local privilege escalation in case that the attacker already has local privileges. (CVE-2023-5178)

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2023:4414-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(185462);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/09");

  script_cve_id(
    "CVE-2023-2163",
    "CVE-2023-2860",
    "CVE-2023-3777",
    "CVE-2023-5178",
    "CVE-2023-31085",
    "CVE-2023-34324",
    "CVE-2023-39189",
    "CVE-2023-39191",
    "CVE-2023-39193",
    "CVE-2023-45862",
    "CVE-2023-46813"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2023:4414-1");

  script_name(english:"SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2023:4414-1)");

  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 SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple
vulnerabilities as referenced in the SUSE-SU-2023:4414-1 advisory.

  - Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly
    marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and
    container escape. (CVE-2023-2163)

  - An out-of-bounds read vulnerability was found in the SR-IPv6 implementation in the Linux kernel. The flaw
    exists within the processing of seg6 attributes. The issue results from the improper validation of user-
    supplied data, which can result in a read past the end of an allocated buffer. This flaw allows a
    privileged local user to disclose sensitive information on affected installations of the Linux kernel.
    (CVE-2023-2860)

  - An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There is a divide-by-zero error
    in do_div(sz,mtd->erasesize), used indirectly by ctrl_cdev_ioctl, when mtd->erasesize is 0.
    (CVE-2023-31085)

  - The vulnerability exists due to improper event handling in Linux kernel. A malicious guest can disable
    paravirtualized device to cause a deadlock in a backend domain (other than dom0). (CVE-2023-34324)

  - A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to
    achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked
    whether the chain is bound and the chain's owner rule can also release the objects in certain
    circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.
    (CVE-2023-3777)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did
    not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN)
    attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39189)

  - An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs
    due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to
    executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute
    arbitrary code in the context of the kernel. (CVE-2023-39191)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the
    flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds
    read, leading to a crash or information disclosure. (CVE-2023-39193)

  - An issue was discovered in drivers/usb/storage/ene_ub6250.c for the ENE UB6250 reader driver in the Linux
    kernel before 6.2.5. An object could potentially extend beyond the end of an allocation. (CVE-2023-45862)

  - An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access
    to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES
    emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege
    escalation). This depends on a race condition through which userspace can replace an instruction before
    the #VC handler reads it. (CVE-2023-46813)

  - A use-after-free vulnerability was found in drivers/nvme/target/tcp.c` in `nvmet_tcp_free_crypto` due to a
    logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a malicious user to
    cause a use-after-free and double-free problem, which may permit remote code execution or lead to local
    privilege escalation in case that the attacker already has local privileges. (CVE-2023-5178)

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/1208788");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1211162");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1211307");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1212423");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213705");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213772");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1214754");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1214874");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1215104");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1215523");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1215545");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1215921");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1215955");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1215986");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216062");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216202");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216322");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216323");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216324");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216333");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216345");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1216512");
  # https://lists.suse.com/pipermail/sle-security-updates/2023-November/017017.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?12d7f3d9");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-2163");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-2860");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-31085");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-34324");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-3777");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-39189");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-39191");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-39193");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-45862");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-46813");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-5178");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/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-2023-5178");

  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:"2022/09/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/11/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-azure");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-azure-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-devel-azure");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-source-azure");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-syms-azure");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  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|SUSE)") audit(AUDIT_OS_NOT, "SUSE / openSUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+|SUSE([\d.]+))", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE / openSUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES15|SLES_SAP15|SUSE15\.5)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES15 / SLES_SAP15 / openSUSE 15', 'SUSE / openSUSE (' + 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 / openSUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES15" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP15" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP15 SP5", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'kernel-azure-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'aarch64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'kernel-azure-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'kernel-azure-devel-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'aarch64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'kernel-azure-devel-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'kernel-devel-azure-5.14.21-150500.33.23.1', 'sp':'5', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'kernel-source-azure-5.14.21-150500.33.23.1', 'sp':'5', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'kernel-syms-azure-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'aarch64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'kernel-syms-azure-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'kernel-azure-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-public-cloud-release-15.5', 'sles-release-15.5']},
    {'reference':'kernel-azure-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-public-cloud-release-15.5', 'sles-release-15.5']},
    {'reference':'kernel-azure-devel-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-public-cloud-release-15.5', 'sles-release-15.5']},
    {'reference':'kernel-azure-devel-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-public-cloud-release-15.5', 'sles-release-15.5']},
    {'reference':'kernel-devel-azure-5.14.21-150500.33.23.1', 'sp':'5', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-public-cloud-release-15.5', 'sles-release-15.5']},
    {'reference':'kernel-source-azure-5.14.21-150500.33.23.1', 'sp':'5', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-public-cloud-release-15.5', 'sles-release-15.5']},
    {'reference':'kernel-syms-azure-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-public-cloud-release-15.5', 'sles-release-15.5']},
    {'reference':'kernel-syms-azure-5.14.21-150500.33.23.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-public-cloud-release-15.5', 'sles-release-15.5']},
    {'reference':'cluster-md-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'cluster-md-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'dlm-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'dlm-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'gfs2-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'gfs2-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-devel-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-devel-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-extra-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-extra-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-livepatch-devel-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-livepatch-devel-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-optional-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-optional-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-azure-vdso-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-devel-azure-5.14.21-150500.33.23.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-source-azure-5.14.21-150500.33.23.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-syms-azure-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kernel-syms-azure-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kselftests-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'kselftests-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'ocfs2-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'ocfs2-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'reiserfs-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'aarch64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'reiserfs-kmp-azure-5.14.21-150500.33.23.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']}
];

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-azure / dlm-kmp-azure / gfs2-kmp-azure / etc');
}

References

CVSS3

10

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

AI Score

8.6

Confidence

High

EPSS

0.038

Percentile

92.1%