Long latency MMIO mapping operations are not preemptible [XSA-125, CVE-2015-2752] Unmediated PCI command register access in qemu [XSA-126, CVE-2015-2756] Certain domctl operations may be abused to lock up the host [XSA-127, CVE-2015-2751] update to xen-4.4.2
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 2015-5208.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(82729);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2015-2751", "CVE-2015-2752", "CVE-2015-2756");
script_xref(name:"FEDORA", value:"2015-5208");
script_name(english:"Fedora 21 : xen-4.4.2-2.fc21 (2015-5208)");
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:
"Long latency MMIO mapping operations are not preemptible [XSA-125,
CVE-2015-2752] Unmediated PCI command register access in qemu
[XSA-126, CVE-2015-2756] Certain domctl operations may be abused to
lock up the host [XSA-127, CVE-2015-2751] update to xen-4.4.2
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=1203732"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.redhat.com/show_bug.cgi?id=1203737"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.redhat.com/show_bug.cgi?id=1203745"
);
# https://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?252db109"
);
script_set_attribute(attribute:"solution", value:"Update the affected xen package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
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:21");
script_set_attribute(attribute:"patch_publication_date", value:"2015/04/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/04/13");
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:"^21([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 21.x", "Fedora " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
flag = 0;
if (rpm_check(release:"FC21", reference:"xen-4.4.2-2.fc21")) 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 | 21 | cpe:/o:fedoraproject:fedora:21 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2751
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2752
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2756
www.nessus.org/u?252db109
bugzilla.redhat.com/show_bug.cgi?id=1203732
bugzilla.redhat.com/show_bug.cgi?id=1203737
bugzilla.redhat.com/show_bug.cgi?id=1203745