CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
19.1%
The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-13047 advisory.
A use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in the Linux Kernel. After CIFS transfers response data to a system call, there are still local variable points to the memory region, and if the system call frees it faster than CIFS uses it, CIFS will access a free memory region, leading to a denial of service. (CVE-2023-1192)
A use-after-free vulnerability in the Linux kernel’s fs/smb/client component can be exploited to achieve local privilege escalation. In case of an error in smb3_fs_context_parse_param, ctx->password was freed but the field was not set to NULL which could lead to double free. We recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705. (CVE-2023-5345)
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)
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 descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2023-13047.
##
include('compat.inc');
if (description)
{
script_id(186960);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/05");
script_cve_id("CVE-2023-1192", "CVE-2023-5345", "CVE-2023-45871");
script_name(english:"Oracle Linux 9 : kernel (ELSA-2023-13047)");
script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2023-13047 advisory.
- A use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in the Linux Kernel. After CIFS
transfers response data to a system call, there are still local variable points to the memory region, and
if the system call frees it faster than CIFS uses it, CIFS will access a free memory region, leading to a
denial of service. (CVE-2023-1192)
- A use-after-free vulnerability in the Linux kernel's fs/smb/client component can be exploited to achieve
local privilege escalation. In case of an error in smb3_fs_context_parse_param, ctx->password was freed
but the field was not set to NULL which could lead to double free. We recommend upgrading past commit
e6e43b8aa7cd3c3af686caf0c2e11819a886d705. (CVE-2023-5345)
- 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)
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://linux.oracle.com/errata/ELSA-2023-13047.html");
script_set_attribute(attribute:"solution", value:
"Update the affected 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: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-2023-5345");
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:"2023/09/27");
script_set_attribute(attribute:"patch_publication_date", value:"2023/12/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/12/15");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:9::appstream");
script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:linux:9::codeready_builder");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:9");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:9:3:baseos_patch");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:9::baseos_latest");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bpftool");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-abi-stablelists");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-cross-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel-matched");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-modules");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-modules-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-modules-extra");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel-matched");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules-extra");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rtla");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Oracle Linux 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("linux_alt_patch_detect.nasl", "ssh_get_info.nasl");
script_require_keys("Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/local_checks_enabled");
exit(0);
}
include('ksplice.inc');
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_release = get_kb_item("Host/RedHat/release");
if (isnull(os_release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^9([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 9', 'Oracle Linux ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);
var machine_uptrack_level = get_one_kb_item('Host/uptrack-uname-r');
if (machine_uptrack_level)
{
var trimmed_uptrack_level = ereg_replace(string:machine_uptrack_level, pattern:"\.(x86_64|i[3-6]86|aarch64)$", replace:'');
var fixed_uptrack_levels = ['5.14.0-362.13.0.1.el9_3'];
foreach var fixed_uptrack_level ( fixed_uptrack_levels ) {
if (rpm_spec_vers_cmp(a:trimmed_uptrack_level, b:fixed_uptrack_level) >= 0)
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for ELSA-2023-13047');
}
}
__rpm_report = 'Running KSplice level of ' + trimmed_uptrack_level + ' does not meet the minimum fixed level of ' + join(fixed_uptrack_levels, sep:' / ') + ' for this advisory.\n\n';
}
var kernel_major_minor = get_kb_item('Host/uname/major_minor');
if (empty_or_null(kernel_major_minor)) exit(1, 'Unable to determine kernel major-minor level.');
var expected_kernel_major_minor = '5.14';
if (kernel_major_minor != expected_kernel_major_minor)
audit(AUDIT_OS_NOT, 'running kernel level ' + expected_kernel_major_minor + ', it is running kernel level ' + kernel_major_minor);
var pkgs = [
{'reference':'bpftool-7.2.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.14.0'},
{'reference':'kernel-abi-stablelists-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-abi-stablelists-5.14.0'},
{'reference':'kernel-core-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-core-5.14.0'},
{'reference':'kernel-cross-headers-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-cross-headers-5.14.0'},
{'reference':'kernel-debug-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-5.14.0'},
{'reference':'kernel-debug-core-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-core-5.14.0'},
{'reference':'kernel-debug-devel-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-devel-5.14.0'},
{'reference':'kernel-debug-devel-matched-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-devel-matched-5.14.0'},
{'reference':'kernel-debug-modules-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-modules-5.14.0'},
{'reference':'kernel-debug-modules-core-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-modules-core-5.14.0'},
{'reference':'kernel-debug-modules-extra-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-modules-extra-5.14.0'},
{'reference':'kernel-devel-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-devel-5.14.0'},
{'reference':'kernel-devel-matched-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-devel-matched-5.14.0'},
{'reference':'kernel-headers-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-headers-5.14.0'},
{'reference':'kernel-modules-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-modules-5.14.0'},
{'reference':'kernel-modules-core-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-modules-core-5.14.0'},
{'reference':'kernel-modules-extra-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-modules-extra-5.14.0'},
{'reference':'kernel-tools-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-5.14.0'},
{'reference':'kernel-tools-libs-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-libs-5.14.0'},
{'reference':'kernel-tools-libs-devel-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-libs-devel-5.14.0'},
{'reference':'perf-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-perf-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rtla-5.14.0-362.13.0.1.el9_3', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'bpftool-7.2.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.14.0'},
{'reference':'kernel-abi-stablelists-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-abi-stablelists-5.14.0'},
{'reference':'kernel-core-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-core-5.14.0'},
{'reference':'kernel-cross-headers-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-cross-headers-5.14.0'},
{'reference':'kernel-debug-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-5.14.0'},
{'reference':'kernel-debug-core-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-core-5.14.0'},
{'reference':'kernel-debug-devel-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-devel-5.14.0'},
{'reference':'kernel-debug-devel-matched-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-devel-matched-5.14.0'},
{'reference':'kernel-debug-modules-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-modules-5.14.0'},
{'reference':'kernel-debug-modules-core-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-modules-core-5.14.0'},
{'reference':'kernel-debug-modules-extra-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-modules-extra-5.14.0'},
{'reference':'kernel-devel-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-devel-5.14.0'},
{'reference':'kernel-devel-matched-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-devel-matched-5.14.0'},
{'reference':'kernel-headers-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-headers-5.14.0'},
{'reference':'kernel-modules-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-modules-5.14.0'},
{'reference':'kernel-modules-core-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-modules-core-5.14.0'},
{'reference':'kernel-modules-extra-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-modules-extra-5.14.0'},
{'reference':'kernel-tools-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-5.14.0'},
{'reference':'kernel-tools-libs-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-libs-5.14.0'},
{'reference':'kernel-tools-libs-devel-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-libs-devel-5.14.0'},
{'reference':'perf-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-perf-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'rtla-5.14.0-362.13.0.1.el9_3', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE}
];
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var epoch = NULL;
var allowmaj = NULL;
var exists_check = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = 'EL' + 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['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (reference && _release) {
if (exists_check) {
if (rpm_exists(release:_release, rpm:exists_check) && rpm_check(release:_release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
} else {
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) 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, 'bpftool / kernel / kernel-abi-stablelists / etc');
}
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
19.1%