Multiple vulnerabilities have been discovered in the Xen hypervisor :
CVE-2017-10912 Jann Horn discovered that incorrectly handling of page transfers might result in privilege escalation.
CVE-2017-10913 / CVE-2017-10914 Jann Horn discovered that race conditions in grant handling might result in information leaks or privilege escalation.
CVE-2017-10915 Andrew Cooper discovered that incorrect reference counting with shadow paging might result in privilege escalation.
CVE-2017-10916 Andrew Cooper discovered an information leak in the handling of the Memory Protection Extensions (MPX) and Protection Key (PKU) CPU features. This only affects Debian stretch.
CVE-2017-10917 Ankur Arora discovered a NULL pointer dereference in event polling, resulting in denial of service.
CVE-2017-10918 Julien Grall discovered that incorrect error handling in physical-to-machine memory mappings may result in privilege escalation, denial of service or an information leak.
CVE-2017-10919 Julien Grall discovered that incorrect handling of virtual interrupt injection on ARM systems may result in denial of service.
CVE-2017-10920 / CVE-2017-10921 / CVE-2017-10922 Jan Beulich discovered multiple places where reference counting on grant table operations was incorrect, resulting in potential privilege escalation.
CVE-2017-12135 Jan Beulich found multiple problems in the handling of transitive grants which could result in denial of service and potentially privilege escalation.
CVE-2017-12136 Ian Jackson discovered that race conditions in the allocator for grant mappings may result in denial of service or privilege escalation. This only affects Debian stretch.
CVE-2017-12137 Andrew Cooper discovered that incorrect validation of grants may result in privilege escalation.
CVE-2017-12855 Jan Beulich discovered that incorrect grant status handling, thus incorrectly informing the guest that the grant is no longer in use.
XSA-235 (no CVE yet)
Wei Liu discovered that incorrect locking of add-to-physmap operations on ARM may result in denial of service.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-3969. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(103146);
script_version("3.10");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2017-10912", "CVE-2017-10913", "CVE-2017-10914", "CVE-2017-10915", "CVE-2017-10916", "CVE-2017-10917", "CVE-2017-10918", "CVE-2017-10919", "CVE-2017-10920", "CVE-2017-10921", "CVE-2017-10922", "CVE-2017-12135", "CVE-2017-12136", "CVE-2017-12137", "CVE-2017-12855", "CVE-2017-15596");
script_xref(name:"DSA", value:"3969");
script_name(english:"Debian DSA-3969-1 : xen - security update");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Multiple vulnerabilities have been discovered in the Xen hypervisor :
- CVE-2017-10912
Jann Horn discovered that incorrectly handling of page
transfers might result in privilege escalation.
- CVE-2017-10913 / CVE-2017-10914
Jann Horn discovered that race conditions in grant
handling might result in information leaks or privilege
escalation.
- CVE-2017-10915
Andrew Cooper discovered that incorrect reference
counting with shadow paging might result in privilege
escalation.
- CVE-2017-10916
Andrew Cooper discovered an information leak in the
handling of the Memory Protection Extensions (MPX) and
Protection Key (PKU) CPU features. This only affects
Debian stretch.
- CVE-2017-10917
Ankur Arora discovered a NULL pointer dereference in
event polling, resulting in denial of service.
- CVE-2017-10918
Julien Grall discovered that incorrect error handling in
physical-to-machine memory mappings may result in
privilege escalation, denial of service or an
information leak.
- CVE-2017-10919
Julien Grall discovered that incorrect handling of
virtual interrupt injection on ARM systems may result in
denial of service.
- CVE-2017-10920 / CVE-2017-10921 / CVE-2017-10922
Jan Beulich discovered multiple places where reference
counting on grant table operations was incorrect,
resulting in potential privilege escalation.
- CVE-2017-12135
Jan Beulich found multiple problems in the handling of
transitive grants which could result in denial of
service and potentially privilege escalation.
- CVE-2017-12136
Ian Jackson discovered that race conditions in the
allocator for grant mappings may result in denial of
service or privilege escalation. This only affects
Debian stretch.
- CVE-2017-12137
Andrew Cooper discovered that incorrect validation of
grants may result in privilege escalation.
- CVE-2017-12855
Jan Beulich discovered that incorrect grant status
handling, thus incorrectly informing the guest that the
grant is no longer in use.
- XSA-235 (no CVE yet)
Wei Liu discovered that incorrect locking of
add-to-physmap operations on ARM may result in denial of
service."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10912"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10913"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10914"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10915"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10916"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10917"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10918"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10919"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10920"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10921"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-10922"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-12135"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-12136"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-12137"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2017-12855"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/xen"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/stretch/xen"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2017/dsa-3969"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the xen packages.
For the oldstable distribution (jessie), these problems have been
fixed in version 4.4.1-9+deb8u10.
For the stable distribution (stretch), these problems have been fixed
in version 4.8.1-1+deb9u3."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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:H/A:H");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_set_attribute(attribute:"patch_publication_date", value:"2017/09/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/13");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"8.0", prefix:"libxen-4.4", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"libxen-dev", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"libxenstore3.0", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"xen-hypervisor-4.4-amd64", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"xen-hypervisor-4.4-arm64", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"xen-hypervisor-4.4-armhf", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"xen-system-amd64", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"xen-system-arm64", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"xen-system-armhf", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"xen-utils-4.4", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"xen-utils-common", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"8.0", prefix:"xenstore-utils", reference:"4.4.1-9+deb8u10")) flag++;
if (deb_check(release:"9.0", prefix:"libxen-4.8", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libxen-dev", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libxenstore3.0", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"xen-hypervisor-4.8-amd64", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"xen-hypervisor-4.8-arm64", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"xen-hypervisor-4.8-armhf", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"xen-system-amd64", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"xen-system-arm64", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"xen-system-armhf", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"xen-utils-4.8", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"xen-utils-common", reference:"4.8.1-1+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"xenstore-utils", reference:"4.8.1-1+deb9u3")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | xen | p-cpe:/a:debian:debian_linux:xen |
debian | debian_linux | 8.0 | cpe:/o:debian:debian_linux:8.0 |
debian | debian_linux | 9.0 | cpe:/o:debian:debian_linux:9.0 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10912
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10913
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10914
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10915
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10916
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10917
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10918
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10919
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10920
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10921
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10922
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12135
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12136
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12137
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12855
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15596
packages.debian.org/source/jessie/xen
packages.debian.org/source/stretch/xen
security-tracker.debian.org/tracker/CVE-2017-10912
security-tracker.debian.org/tracker/CVE-2017-10913
security-tracker.debian.org/tracker/CVE-2017-10914
security-tracker.debian.org/tracker/CVE-2017-10915
security-tracker.debian.org/tracker/CVE-2017-10916
security-tracker.debian.org/tracker/CVE-2017-10917
security-tracker.debian.org/tracker/CVE-2017-10918
security-tracker.debian.org/tracker/CVE-2017-10919
security-tracker.debian.org/tracker/CVE-2017-10920
security-tracker.debian.org/tracker/CVE-2017-10921
security-tracker.debian.org/tracker/CVE-2017-10922
security-tracker.debian.org/tracker/CVE-2017-12135
security-tracker.debian.org/tracker/CVE-2017-12136
security-tracker.debian.org/tracker/CVE-2017-12137
security-tracker.debian.org/tracker/CVE-2017-12855
www.debian.org/security/2017/dsa-3969