The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2019-2125 advisory.
Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on ‘port contention’. (CVE-2018-5407)
Bounds checking in Tianocompress before November 7, 2017 may allow an authenticated user to potentially enable an escalation of privilege via local access. (CVE-2017-5731)
Stack overflow in corrupted bmp for EDK II may allow unprivileged user to potentially enable denial of service or elevation of privilege via local access. (CVE-2018-12181)
Stack overflow in XHCI for EDK II may allow an unauthenticated user to potentially enable denial of service via local access. (CVE-2019-0161)
Logic issue in variable service module for EDK II/UDK2018/UDK2017/UDK2015 may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access. (CVE-2018-3613)
Buffer overflow in system firmware for EDK II may allow unauthenticated user to potentially enable escalation of privilege and/or denial of service via network access. (CVE-2019-0160)
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-2019-2125.
##
include('compat.inc');
if (description)
{
script_id(180784);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/12");
script_cve_id(
"CVE-2017-5731",
"CVE-2017-5732",
"CVE-2017-5733",
"CVE-2017-5734",
"CVE-2017-5735",
"CVE-2018-3613",
"CVE-2018-5407",
"CVE-2018-12181",
"CVE-2019-0160",
"CVE-2019-0161"
);
script_name(english:"Oracle Linux 7 : ovmf (ELSA-2019-2125)");
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 host has a package installed that is affected by multiple vulnerabilities as referenced in the
ELSA-2019-2125 advisory.
- Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to
timing attacks via a side-channel timing attack on 'port contention'. (CVE-2018-5407)
- Bounds checking in Tianocompress before November 7, 2017 may allow an authenticated user to potentially
enable an escalation of privilege via local access. (CVE-2017-5731)
- Stack overflow in corrupted bmp for EDK II may allow unprivileged user to potentially enable denial of
service or elevation of privilege via local access. (CVE-2018-12181)
- Stack overflow in XHCI for EDK II may allow an unauthenticated user to potentially enable denial of
service via local access. (CVE-2019-0161)
- Logic issue in variable service module for EDK II/UDK2018/UDK2017/UDK2015 may allow an authenticated user
to potentially enable escalation of privilege, information disclosure and/or denial of service via local
access. (CVE-2018-3613)
- Buffer overflow in system firmware for EDK II may allow unauthenticated user to potentially enable
escalation of privilege and/or denial of service via network access. (CVE-2019-0160)
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-2019-2125.html");
script_set_attribute(attribute:"solution", value:
"Update the affected OVMF package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
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:N/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-2019-0160");
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:"2018/04/16");
script_set_attribute(attribute:"patch_publication_date", value:"2019/08/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/07");
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:"p-cpe:/a:oracle:linux:OVMF");
script_set_attribute(attribute:"generated_plugin", value:"former");
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("ssh_get_info.nasl");
script_require_keys("Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/local_checks_enabled");
exit(0);
}
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([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 7', 'Oracle Linux ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);
if ('x86_64' >!< cpu) audit(AUDIT_ARCH_NOT, 'x86_64', cpu);
var rpm_list = get_kb_item_or_exit('Host/RedHat/rpm-list');
if (rpm_list !~ "((?<=^)|(?<=\\n))OVMF-20[0-9]{6}-")
audit(AUDIT_PACKAGE_NOT_INSTALLED, 'OVMF (old name format)');
var pkgs = [
{'reference':'OVMF-20180508-6.gitee3198e672e2.el7', 'release':'7', '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_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, 'OVMF');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5731
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5732
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5733
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5734
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5735
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12181
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3613
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5407
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0160
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0161
linux.oracle.com/errata/ELSA-2019-2125.html