6.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:S/C:C/I:C/A:C
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
0.003 Low
EPSS
Percentile
70.2%
paravirtualized drivers incautious about shared memory contents [XSA-155, CVE-2015-8550] qemu-dm buffer overrun in MSI-X handling [XSA-164, CVE-2015-8554] information leak in legacy x86 FPU/XMM initialization [XSA-165, CVE-2015-8555] ioreq handling possibly susceptible to multiple read issue [XSA-166]
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-c44bd3e0fa.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(89398);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2015-8550", "CVE-2015-8554", "CVE-2015-8555");
script_xref(name:"FEDORA", value:"2015-c44bd3e0fa");
script_name(english:"Fedora 22 : xen-4.5.2-6.fc22 (2015-c44bd3e0fa)");
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:
"paravirtualized drivers incautious about shared memory contents
[XSA-155, CVE-2015-8550] qemu-dm buffer overrun in MSI-X handling
[XSA-164, CVE-2015-8554] information leak in legacy x86 FPU/XMM
initialization [XSA-165, CVE-2015-8555] ioreq handling possibly
susceptible to multiple read issue [XSA-166]
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=1289125"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.redhat.com/show_bug.cgi?id=1289129"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.redhat.com/show_bug.cgi?id=1289130"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.redhat.com/show_bug.cgi?id=1290365"
);
# https://lists.fedoraproject.org/pipermail/package-announce/2016-January/174819.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?f0f79a1c"
);
script_set_attribute(attribute:"solution", value:"Update the affected xen package.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:S/C:C/I:C/A:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N");
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:22");
script_set_attribute(attribute:"patch_publication_date", value:"2016/01/02");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/04");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 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:"^22([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 22.x", "Fedora " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
flag = 0;
if (rpm_check(release:"FC22", reference:"xen-4.5.2-6.fc22")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(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 | 22 | cpe:/o:fedoraproject:fedora:22 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8550
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8554
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8555
www.nessus.org/u?f0f79a1c
bugzilla.redhat.com/show_bug.cgi?id=1289125
bugzilla.redhat.com/show_bug.cgi?id=1289129
bugzilla.redhat.com/show_bug.cgi?id=1289130
bugzilla.redhat.com/show_bug.cgi?id=1290365
6.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:S/C:C/I:C/A:C
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
0.003 Low
EPSS
Percentile
70.2%