RHEL 6: Unpatched Vulnerability in QEMU-KVM-RHEV
Reporter | Title | Published | Views | Family All 199 |
---|---|---|---|---|
Fedora | [SECURITY] Fedora 27 Update: xen-4.9.0-9.fc27 | 4 Sep 201716:18 | – | fedora |
Fedora | [SECURITY] Fedora 26 Update: xen-4.8.1-8.fc26 | 3 Sep 201722:22 | – | fedora |
Fedora | [SECURITY] Fedora 22 Update: qemu-2.3.1-12.fc22 | 25 Feb 201608:55 | – | fedora |
Fedora | [SECURITY] Fedora 23 Update: qemu-2.4.1-7.fc23 | 21 Feb 201616:33 | – | fedora |
Fedora | [SECURITY] Fedora 22 Update: qemu-2.3.1-15.fc22 | 7 Jun 201601:22 | – | fedora |
Fedora | [SECURITY] Fedora 23 Update: qemu-2.4.1-10.fc23 | 31 May 201602:54 | – | fedora |
Fedora | [SECURITY] Fedora 24 Update: qemu-2.6.0-3.fc24 | 29 May 201617:51 | – | fedora |
OpenVAS | Fedora Update for xen FEDORA-2017-b7f1197c23 | 4 Sep 201700:00 | – | openvas |
OpenVAS | Huawei EulerOS: Security Advisory for qemu-kvm (EulerOS-SA-2017-1223) | 23 Jan 202000:00 | – | openvas |
OpenVAS | Debian Security Advisory DSA 3920-1 (qemu - security update) | 25 Jul 201700:00 | – | openvas |
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory qemu-kvm-rhev. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(198548);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/03");
script_cve_id(
"CVE-2016-2197",
"CVE-2016-4020",
"CVE-2017-9310",
"CVE-2017-9524",
"CVE-2017-10664"
);
script_name(english:"RHEL 6 : qemu-kvm-rhev (Unpatched Vulnerability)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat 6 host is affected by multiple vulnerabilities that will not be patched.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple
vulnerabilities that have been acknowledged by the vendor but will not be patched.
- Qemu: i386: leakage of stack memory to guest in kvmvapic.c (CVE-2016-4020)
- QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer
dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block
(CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance
resulting in DoS. (CVE-2016-2197)
- qemu-nbd in QEMU (aka Quick Emulator) does not ignore SIGPIPE, which allows remote attackers to cause a
denial of service (daemon crash) by disconnecting during a server-to-client reply attempt.
(CVE-2017-10664)
Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package
is installed.");
script_set_attribute(attribute:"solution", value:
"The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation
guidance.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
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:C/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-4020");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vendor_unpatched", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/01/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/06/03");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm-rhev");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Red Hat Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
include('rhel.inc');
if (!get_kb_item("global_settings/vendor_unpatched"))
exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '6')) audit(AUDIT_OS_NOT, 'Red Hat 6.x', 'Red Hat ' + 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$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);
var constraints = [
{
'pkgs': [
{'reference':'qemu-kvm-rhev', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'qemu-kvm-rhev'}
]
}
];
var flag = 0;
foreach var constraint_array ( constraints ) {
var repo_relative_urls = NULL;
var enterprise_linux_flag = rhel_repo_urls_has_content_dist_rhel(repo_urls:repo_relative_urls);
foreach var pkg ( constraint_array['pkgs'] ) {
var unpatched_pkg = NULL;
var _release = NULL;
var sp = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var exists_check = NULL;
var cves = NULL;
if (!empty_or_null(pkg['unpatched_pkg'])) unpatched_pkg = pkg['unpatched_pkg'];
if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
if (unpatched_pkg &&
_release &&
(!exists_check || rpm_exists(release:_release, rpm:exists_check)) &&
unpatched_package_exists(release:_release, package:unpatched_pkg, cves: cves)) flag++;
}
}
if (flag)
{
var extra = NULL;
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
extra : unpatched_packages_report()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'qemu-kvm-rhev');
}
Transform Your Security Services
Elevate your offerings with Vulners' advanced Vulnerability Intelligence. Contact us for a demo and discover the difference comprehensive, actionable intelligence can make in your security strategy.
Book a live demo