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-d8253e2b1d.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(89429);
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-d8253e2b1d");
script_name(english:"Fedora 23 : xen-4.5.2-6.fc23 (2015-d8253e2b1d)");
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/2015-December/174288.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?cb79bcf5"
);
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:23");
script_set_attribute(attribute:"patch_publication_date", value:"2015/12/22");
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:"^23([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 23.x", "Fedora " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
flag = 0;
if (rpm_check(release:"FC23", reference:"xen-4.5.2-6.fc23")) 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 | 23 | cpe:/o:fedoraproject:fedora:23 |
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?cb79bcf5
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