#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Miracle Linux Security Advisory AXSA:2019-3891:04.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(289870);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/19");
script_cve_id(
"CVE-2018-12126",
"CVE-2018-12127",
"CVE-2018-12130",
"CVE-2019-11091"
);
script_xref(name:"IAVA", value:"2019-A-0166");
script_xref(name:"CEA-ID", value:"CEA-2019-0547");
script_xref(name:"CEA-ID", value:"CEA-2019-0324");
script_name(english:"MiracleLinux 7 : kernel-3.10.0-957.12.2.el7 (AXSA:2019-3891:04)");
script_set_attribute(attribute:"synopsis", value:
"The remote MiracleLinux host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the
AXSA:2019-3891:04 advisory.
* A flaw was found in the implementation of the fill buffer, a mechanism used by modern CPUs when a
cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page
fault, the execution will continue speculatively with incorrect data from the fill buffer while the data
is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
(CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance
of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore
Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into
these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed
processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use
this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a load port subcomponent to perform load operations from memory or IO. During a
load operation, the load port receives data from the memory or IO subsystem and then provides the data to
the CPU registers and operations in the CPUs pipelines. Stale load operations results are stored in the
'load port' table until overwritten by newer operations. Certain load-port operations triggered by an
attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a
timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated
user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
Tenable has extracted the preceding description block directly from the MiracleLinux 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://tsn.miraclelinux.com/en/node/10348");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11091");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vendor_severity", value:"High");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/07");
script_set_attribute(attribute:"patch_publication_date", value:"2019/05/23");
script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/16");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:bpftool");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-abi-whitelists");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-debug-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:kernel-tools-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:miracle:linux:python-perf");
script_set_attribute(attribute:"cpe", value:"cpe:/o:miracle:linux:7");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Miracle Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/MiracleLinux/release", "Host/MiracleLinux/rpm-list", "Host/cpu");
exit(0);
}
include('rpm2.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'MIRACLE LINUX' >!< os_product) audit(AUDIT_OS_NOT, 'MIRACLE LINUX');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'MIRACLE LINUX');
if (! preg(pattern:"^7([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'MiracleLinux 7.x', 'MIRACLE LINUX ' + os_version);
if (!get_kb_item('Host/MiracleLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && 'ppc' >!< cpu && 's390' >!< cpu && 'x86_64' >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'MIRACLE LINUX', cpu);
var constraints = [
{
'release': '7',
'pkgs': [
{'reference':'bpftool-3.10.0-957.12.2.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
{'reference':'kernel-3.10.0-957.12.2.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
{'reference':'kernel-abi-whitelists-3.10.0-957.12.2.el7', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
{'reference':'kernel-debug-3.10.0-957.12.2.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
{'reference':'kernel-debug-devel-3.10.0-957.12.2.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
{'reference':'kernel-devel-3.10.0-957.12.2.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
{'reference':'kernel-headers-3.10.0-957.12.2.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
{'reference':'kernel-tools-3.10.0-957.12.2.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
{'reference':'kernel-tools-libs-3.10.0-957.12.2.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
{'reference':'perf-3.10.0-957.12.2.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
{'reference':'python-perf-3.10.0-957.12.2.el7', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'}
]
}
];
var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');
var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
# Check that the target release is equal to the affected release
if (!empty_or_null(constraint['release'])){
if (constraint['release'] != os_release) continue;
}
if (!empty_or_null(constraint['sp'])){
if (constraint['sp'] != os_sp) continue;
}
foreach var pkg ( constraint['pkgs'] ) {
reference = NULL;
sp = NULL;
_cpu = NULL;
el_string = NULL;
rpm_spec_vers_cmp = NULL;
epoch = NULL;
allowmaj = NULL;
exists_check = NULL;
cves = NULL;
if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
if (reference &&
## (no known rpm to check OR known rpm_exists)
(!exists_check || rpm_exists(rpm:exists_check)) &&
rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) 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-whitelists / kernel-debug / etc');
}
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