7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
36.6%
HVM qemu unexpectedly enabling emulated VGA graphics backends [XSA-119, CVE-2015-2152] Hypervisor memory corruption due to x86 emulator flaw [XSA-123, CVE-2015-2151] Information leak via internal x86 system device emulation, Information leak through version information hypercall
Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Fedora Security Advisory 2015-3721.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(82051);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2015-2044", "CVE-2015-2045", "CVE-2015-2151", "CVE-2015-2152");
script_bugtraq_id(73015, 73068);
script_xref(name:"FEDORA", value:"2015-3721");
script_name(english:"Fedora 20 : xen-4.3.3-12.fc20 (2015-3721)");
script_summary(english:"Checks rpm output for the updated package.");
script_set_attribute(
attribute:"synopsis",
value:"The remote Fedora host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"HVM qemu unexpectedly enabling emulated VGA graphics backends
[XSA-119, CVE-2015-2152] Hypervisor memory corruption due to x86
emulator flaw [XSA-123, CVE-2015-2151] Information leak via internal
x86 system device emulation, Information leak through version
information hypercall
Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.redhat.com/show_bug.cgi?id=1196274"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.redhat.com/show_bug.cgi?id=1200724"
);
# https://lists.fedoraproject.org/pipermail/package-announce/2015-March/152588.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?2b5887a4"
);
script_set_attribute(attribute:"solution", value:"Update the affected xen package.");
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:ND/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:xen");
script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:20");
script_set_attribute(attribute:"patch_publication_date", value:"2015/03/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/25");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.");
script_family(english:"Fedora Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^20([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 20.x", "Fedora " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
flag = 0;
if (rpm_check(release:"FC20", reference:"xen-4.3.3-12.fc20")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fedoraproject | fedora | xen | p-cpe:/a:fedoraproject:fedora:xen |
fedoraproject | fedora | 20 | cpe:/o:fedoraproject:fedora:20 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2044
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2045
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2151
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2152
www.nessus.org/u?2b5887a4
bugzilla.redhat.com/show_bug.cgi?id=1196274
bugzilla.redhat.com/show_bug.cgi?id=1200724