The remote Oracle Linux 7 / 8 host has multiple vulnerabilities in the Unbreakable Enterprise kernel (ELSA-2020-5884)
Reporter | Title | Published | Views | Family All 199 |
---|---|---|---|---|
![]() | Unbreakable Enterprise kernel security update | 12 Oct 202000:00 | – | oraclelinux |
![]() | Unbreakable Enterprise kernel security update | 12 Oct 202000:00 | – | oraclelinux |
![]() | kernel security and bug fix update | 16 Dec 202000:00 | – | oraclelinux |
![]() | Unbreakable Enterprise kernel security update | 9 Oct 202000:00 | – | oraclelinux |
![]() | kernel security and bug fix update | 21 Oct 202000:00 | – | oraclelinux |
![]() | Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2020-2176) | 12 Oct 202000:00 | – | openvas |
![]() | Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2020-2166) | 12 Oct 202000:00 | – | openvas |
![]() | Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2020-2549) | 15 Dec 202000:00 | – | openvas |
![]() | openSUSE: Security Advisory for the (openSUSE-SU-2020:1382-1) | 9 Sep 202000:00 | – | openvas |
![]() | Debian: Security Advisory (DLA-2385-1) | 29 Sep 202000:00 | – | openvas |
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2020-5884.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(141395);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/10/23");
script_cve_id(
"CVE-2020-14314",
"CVE-2020-14356",
"CVE-2020-14385",
"CVE-2020-14386",
"CVE-2020-25212",
"CVE-2020-25284",
"CVE-2020-25285"
);
script_name(english:"Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5884)");
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 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in
the ELSA-2020-5884 advisory.
- xfs: fix boundary test in xfs_attr_shortform_verify (Eric Sandeen) [Orabug: 31895365] {CVE-2020-14385}
- ext4: fix potential negative array index in do_split() (Eric Sandeen) [Orabug: 31895327]
{CVE-2020-14314}
- mm/hugetlb: fix a race between hugetlb sysctl handlers (Muchun Song) [Orabug: 31884234]
{CVE-2020-25285}
- rbd: require global CAP_SYS_ADMIN for mapping and unmapping (Ilya Dryomov) [Orabug: 31884154]
{CVE-2020-25284}
- nfs: Fix getxattr kernel panic and memory overflow (Jeffrey Mitchell) [Orabug: 31872895]
{CVE-2020-25212}
- net/packet: fix overflow in tpacket_rcv (Or Cohen) [Orabug: 31866487] {CVE-2020-14386}
{CVE-2020-14386}
- cgroup: Fix sock_cgroup_data on big-endian. (Cong Wang) [Orabug: 31779795] {CVE-2020-14356}
- cgroup: fix cgroup_sk_alloc() for sk_clone_lock() (Cong Wang) [Orabug: 31779795] {CVE-2020-14356}
Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.
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-2020-5884.html");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/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-2020-14386");
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:"2020/08/19");
script_set_attribute(attribute:"patch_publication_date", value:"2020/10/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-tools-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python-perf");
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) 2020-2024 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:"^(7|8)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 7 / 8', 'Oracle Linux ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && '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 = ['5.4.17-2011.7.4.el7uek', '5.4.17-2011.7.4.el8uek'];
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-2020-5884');
}
}
__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 = '5.4';
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':'kernel-uek-5.4.17-2011.7.4.el7uek', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-5.4.17'},
{'reference':'kernel-uek-debug-5.4.17-2011.7.4.el7uek', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-5.4.17'},
{'reference':'kernel-uek-debug-devel-5.4.17-2011.7.4.el7uek', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-devel-5.4.17'},
{'reference':'kernel-uek-devel-5.4.17-2011.7.4.el7uek', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-devel-5.4.17'},
{'reference':'kernel-uek-doc-5.4.17-2011.7.4.el7uek', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-doc-5.4.17'},
{'reference':'kernel-uek-tools-5.4.17-2011.7.4.el7uek', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-tools-5.4.17'},
{'reference':'kernel-uek-tools-libs-5.4.17-2011.7.4.el7uek', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-tools-libs-5.4.17'},
{'reference':'perf-5.4.17-2011.7.4.el7uek', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'perf-5.4.17'},
{'reference':'python-perf-5.4.17-2011.7.4.el7uek', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'python-perf-5.4.17'},
{'reference':'kernel-uek-5.4.17-2011.7.4.el7uek', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-5.4.17'},
{'reference':'kernel-uek-debug-5.4.17-2011.7.4.el7uek', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-5.4.17'},
{'reference':'kernel-uek-debug-devel-5.4.17-2011.7.4.el7uek', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-devel-5.4.17'},
{'reference':'kernel-uek-devel-5.4.17-2011.7.4.el7uek', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-devel-5.4.17'},
{'reference':'kernel-uek-doc-5.4.17-2011.7.4.el7uek', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-doc-5.4.17'},
{'reference':'kernel-uek-tools-5.4.17-2011.7.4.el7uek', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-tools-5.4.17'},
{'reference':'kernel-uek-tools-libs-5.4.17-2011.7.4.el7uek', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-tools-libs-5.4.17'},
{'reference':'perf-5.4.17-2011.7.4.el7uek', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'perf-5.4.17'},
{'reference':'python-perf-5.4.17-2011.7.4.el7uek', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'python-perf-5.4.17'},
{'reference':'kernel-uek-5.4.17-2011.7.4.el8uek', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-5.4.17'},
{'reference':'kernel-uek-debug-5.4.17-2011.7.4.el8uek', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-5.4.17'},
{'reference':'kernel-uek-debug-devel-5.4.17-2011.7.4.el8uek', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-devel-5.4.17'},
{'reference':'kernel-uek-devel-5.4.17-2011.7.4.el8uek', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-devel-5.4.17'},
{'reference':'kernel-uek-doc-5.4.17-2011.7.4.el8uek', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-doc-5.4.17'},
{'reference':'kernel-uek-5.4.17-2011.7.4.el8uek', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-5.4.17'},
{'reference':'kernel-uek-debug-5.4.17-2011.7.4.el8uek', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-5.4.17'},
{'reference':'kernel-uek-debug-devel-5.4.17-2011.7.4.el8uek', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-devel-5.4.17'},
{'reference':'kernel-uek-devel-5.4.17-2011.7.4.el8uek', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-devel-5.4.17'},
{'reference':'kernel-uek-doc-5.4.17-2011.7.4.el8uek', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-doc-5.4.17'}
];
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_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, 'kernel-uek / kernel-uek-debug / kernel-uek-debug-devel / etc');
}
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