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
0.0004 Low
EPSS
Percentile
10.1%
Fixes a security flaw in pygrub handling of config files and a denial-of-service case in ne2k NIC for QEMU.
Fixes the case of disappearing network cards in fully-virtualized guests. NB, it only fixes it for guests created after this errata is installed & XenD restarted. Any pre-existing guests may continue to have problems. To fix existing guests, first ensure XenD has been restarted (service xend restart), then use virt-manager/virsh to remove the network card, and then add it back. This will correct the configuration stored in XenD permanently.
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 2007-2270.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(27763);
script_version("1.18");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2007-1321", "CVE-2007-4993");
script_bugtraq_id(23731);
script_xref(name:"FEDORA", value:"2007-2270");
script_name(english:"Fedora 7 : xen-3.1.0-6.fc7 (2007-2270)");
script_summary(english:"Checks rpm output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote Fedora host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"Fixes a security flaw in pygrub handling of config files and a
denial-of-service case in ne2k NIC for QEMU.
Fixes the case of disappearing network cards in fully-virtualized
guests. NB, it only fixes it for guests created after this errata is
installed & XenD restarted. Any pre-existing guests may continue to
have problems. To fix existing guests, first ensure XenD has been
restarted (service xend restart), then use virt-manager/virsh to
remove the network card, and then add it back. This will correct the
configuration stored in XenD permanently.
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=247122"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.redhat.com/show_bug.cgi?id=279581"
);
# https://lists.fedoraproject.org/pipermail/package-announce/2007-October/004000.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?bbf45051"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploit_framework_core", value:"true");
script_cwe_id(20, 189);
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:"p-cpe:/a:fedoraproject:fedora:xen-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:xen-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:xen-libs");
script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:7");
script_set_attribute(attribute:"patch_publication_date", value:"2007/10/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2007/11/06");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2007-2021 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:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 7.x", "Fedora " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
flag = 0;
if (rpm_check(release:"FC7", reference:"xen-3.1.0-6.fc7")) flag++;
if (rpm_check(release:"FC7", reference:"xen-debuginfo-3.1.0-6.fc7")) flag++;
if (rpm_check(release:"FC7", reference:"xen-devel-3.1.0-6.fc7")) flag++;
if (rpm_check(release:"FC7", reference:"xen-libs-3.1.0-6.fc7")) 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 / xen-debuginfo / xen-devel / xen-libs");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fedoraproject | fedora | xen | p-cpe:/a:fedoraproject:fedora:xen |
fedoraproject | fedora | xen-debuginfo | p-cpe:/a:fedoraproject:fedora:xen-debuginfo |
fedoraproject | fedora | xen-devel | p-cpe:/a:fedoraproject:fedora:xen-devel |
fedoraproject | fedora | xen-libs | p-cpe:/a:fedoraproject:fedora:xen-libs |
fedoraproject | fedora | 7 | cpe:/o:fedoraproject:fedora:7 |