Vulnerability CVE-2018-5244

Vulnerability Name:

CVE-2018-5244 (CCN-137096)

Assigned:

2018-01-04

Published:

2018-01-04

Updated:

2018-10-31

Summary:

In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.

CVSS v3 Severity:

6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Low

CVSS v2 Severity:

4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

Vulnerability Type:

CWE-119

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2018-5244

Source: BID
Type: Third Party Advisory, VDB Entry
102433

Source: CCN
Type: BID-102433
Xen CVE-2018-5244 Memory Corruption Vulnerability

Source: SECTRACK
Type: UNKNOWN
1040774

Source: CCN
Type: Xen Security Advisory XSA-253
x86: memory leak with MSR emulation

Source: XF
Type: UNKNOWN
xen-msr-emulation-dos(137096)

Source: GENTOO
Type: UNKNOWN
GLSA-201810-06

Source: CONFIRM
Type: Issue Tracking, Mitigation, Vendor Advisory
https://xenbits.xen.org/xsa/advisory-253.html

Vulnerable Configuration:

Configuration 1:

cpe:/o:xen:xen:*:*:*:*:*:*:*:* (Version >= 4.10.0

Configuration CCN 1:

cpe:/a:xensource:xen:4.10:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:20185244	V	CVE-2018-5244	2023-06-22
oval:org.opensuse.security:def:7831	P	xen-libs-4.17.0_06-150500.1.10 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:635	P	Security update for rubygem-activesupport-5_1 (Moderate) (in QA)	2022-09-29
oval:org.opensuse.security:def:589	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:94253	P	(Important)	2022-07-06
oval:org.opensuse.security:def:3225	P	libopus0-1.1-3.1 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:3535	P	java-1_8_0-openjdk-1.8.0.222-27.35.2 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:94855	P	xen-libs-4.16.0_08-150400.2.12 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:95165	P	xen-4.16.0_08-150400.2.12 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:917	P	Security update for vim (Important)	2022-06-16
oval:org.opensuse.security:def:1079	P	Security update for fwupd (Important) (in QA)	2022-06-13
oval:org.opensuse.security:def:293	P	python3-targetcli-fb-2.1.53-1.12 on GA media (Moderate)	2022-06-13
oval:org.opensuse.security:def:336	P	xen-libs-4.14.1_16-1.6 on GA media (Moderate)	2022-06-13
oval:org.opensuse.security:def:388	P	xen-libs-4.16.0_08-150400.2.12 on GA media (Moderate)	2022-06-10
oval:org.opensuse.security:def:1666	P	Security update for libvirt (Moderate)	2022-05-05
oval:org.opensuse.security:def:1601	P	Security update for the Linux Kernel (Important)	2022-03-09
oval:org.opensuse.security:def:113591	P	xen-4.15.1_01-1.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:68101	P	Security update for the Linux Kernel (Live Patch 20 for SLE 15 SP1) (Important)	2021-12-14
oval:org.opensuse.security:def:100686	P	(Moderate)	2021-12-03
oval:org.opensuse.security:def:106977	P	xen-4.15.1_01-1.2 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:71419	P	xen-libs-4.12.0_12-1.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:89833	P	xen-libs-4.12.0_12-1.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:61678	P	xen-libs-4.12.0_12-1.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:103488	P	xen-libs-4.12.0_12-1.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:96798	P	xen-libs-4.12.0_12-1.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:63246	P	xen-4.12.0_12-1.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:90081	P	xen-4.12.0_12-1.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:103736	P	xen-4.12.0_12-1.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:97046	P	xen-4.12.0_12-1.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:71189	P	ghostscript-9.26a-3.15.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:71341	P	libzip-devel-1.5.1-1.9 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:2157	P	xen-4.12.0_12-1.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:1265	P	Security update for the Linux Kernel (Live Patch 3 for SLE 15 SP3) (Important)	2021-09-16
oval:org.opensuse.security:def:66922	P	Security update for openssl-1_0_0 (Low)	2021-09-09
oval:org.opensuse.security:def:93973	P	(Important)	2021-09-03
oval:org.opensuse.security:def:64754	P	Security update for qemu (Moderate)	2021-08-27
oval:org.opensuse.security:def:70278	P	Security update for php7 (Important)	2021-08-20
oval:org.opensuse.security:def:69904	P	Security update for c-ares (Important)	2021-08-17
oval:org.opensuse.security:def:46950	P	git-core-1.8.5.6-18.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47940	P	PackageKit-1.1.3-24.9.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47111	P	openssh-7.2p2-55.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48109	P	libexif12-0.6.21-8.3.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48245	P	nmap-6.46-3.6.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48061	P	lcms2-2.7-9.7.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47143	P	radvd-1.9.7-2.12 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47971	P	cifs-utils-6.9-9.6.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47125	P	perl-LWP-Protocol-https-6.04-5.4 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48171	P	libplist3-1.12-20.3.2 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47544	P	MozillaFirefox-52.9.0esr-109.38.2 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48153	P	libmysqlclient18-10.0.40.1-2.9.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47275	P	grub2-2.02-2.12 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48042	P	hplip-3.16.11-1.33 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47246	P	e2fsprogs-1.42.11-15.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48236	P	logwatch-7.4.3-15.65 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47545	P	SuSEfirewall2-3.6.312.333-3.13.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48301	P	rzsz-0.12.21~rc-1001.3.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47367	P	libksba8-1.3.0-23.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47439	P	libzip2-0.11.1-12.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48267	P	perl-LWP-Protocol-https-6.04-5.4 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47559	P	audiofile-0.3.6-10.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47600	P	e2fsprogs-1.43.8-1.19 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47515	P	tftp-5.2-10.3 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47571	P	ceph-common-12.2.8+git.1536505967.080f2248ff-2.15.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48338	P	wget-1.14-21.10.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47680	P	libXp6-1.0.2-3.57 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47601	P	ecryptfs-utils-103-8.3.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47729	P	libjson-c2-0.11-2.15 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47663	P	libHX28-3.18-1.18 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47873	P	qemu-2.11.2-4.14 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47615	P	gdk-pixbuf-lang-2.34.0-19.17.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47813	P	libxerces-c-3_1-3.1.1-12.3 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47811	P	libwireshark9-2.4.9-48.29.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48005	P	fetchmail-6.3.26-12.3 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47736	P	liblouis-data-2.6.4-6.6.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47875	P	res-signingkeys-3.0.38-52.26.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47110	P	openslp-2.0.0-11.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48025	P	gnome-shell-search-provider-nautilus-3.20.3-23.12.10 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48097	P	libaudit1-2.8.1-10.3.2 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47929	P	xscreensaver-5.22-7.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:2296	P	xen-4.14.1_16-1.6 on GA media (Moderate)	2021-08-10
oval:org.opensuse.security:def:101411	P	xen-4.14.1_16-1.6 on GA media (Moderate)	2021-08-10
oval:org.opensuse.security:def:63385	P	xen-4.14.1_16-1.6 on GA media (Moderate)	2021-08-10
oval:org.opensuse.security:def:1023	P	less-530-1.6 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:100966	P	libqpdf26-9.0.2-1.36 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:101112	P	xen-libs-4.14.1_16-1.6 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:72095	P	xen-libs-4.14.1_16-1.6 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:62354	P	xen-libs-4.14.1_16-1.6 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:1545	P	Security update for the Linux Kernel (Important)	2021-07-13
oval:org.opensuse.security:def:68001	P	Security update for the Linux Kernel (Live Patch 19 for SLE 15 SP1) (Important)	2021-06-18
oval:org.opensuse.security:def:66830	P	Security update for postgresql10 (Moderate)	2021-06-14
oval:org.opensuse.security:def:48828	P	dia-0.97.3-15.63 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48459	P	libMagickCore-6_Q16-1-6.8.8.1-33.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48543	P	libpython3_4m1_0-3.4.1-12.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:71076	P	postgresql-10-6.8 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48605	P	python-cupshelpers-1.5.7-7.5 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48515	P	liblcms1-1.19-17.28 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48670	P	flash-player-11.2.202.406-1.3 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48599	P	perl-XML-LibXML-2.0019-5.3 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:46814	P	perl-Cyrus-IMAP-2.3.18-35.71 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48680	P	libIlmImf-Imf_2_1-21-32bit-2.1.0-4.5 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48701	P	pidgin-otr-4.0.0-6.18 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48734	P	libgio-fam-2.38.2-5.12 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48661	P	ImageMagick-6.8.8.1-5.21 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:71123	P	xen-libs-4.10.1_04-1.4 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:46815	P	perl-HTML-Parser-3.71-1.178 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48772	P	gcc48-gij-32bit-4.8.5-30.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48726	P	icu-52.1-7.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:61382	P	xen-libs-4.10.1_04-1.4 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:46829	P	python-pyOpenSSL-0.14-1.7 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48757	P	rhythmbox-3.0.2-1.92 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:73613	P	Security update for libxml2 (Moderate)	2021-05-05
oval:org.opensuse.security:def:64489	P	Security update for p7zip (Moderate)	2021-05-04
oval:org.opensuse.security:def:70009	P	Security update for gnutls (Important)	2021-03-24
oval:org.opensuse.security:def:64667	P	Security update for python (Moderate)	2021-03-11
oval:org.opensuse.security:def:49304	P	Security update for python-Jinja2 (Important)	2021-02-25
oval:org.opensuse.security:def:70173	P	Security update for openssh (Moderate)	2020-12-18
oval:org.opensuse.security:def:67736	P	Security update for the Linux Kernel (Live Patch 21 for SLE 15) (Important)	2020-12-08
oval:org.opensuse.security:def:107632	P	xen-4.13.1_02-1.2 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:2222	P	xen-4.13.1_02-1.2 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:71747	P	xen-libs-4.13.1_02-1.2 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:62006	P	xen-libs-4.13.1_02-1.2 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:63311	P	xen-4.13.1_02-1.2 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:2101	P	xen-4.10.1_04-1.4 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:116910	P	xen-libs-4.13.1_02-1.2 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:107352	P	xen-libs-4.13.1_02-1.2 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:71454	P	ceph-common-15.2.2.18+g1dbcddb5d8-1.10 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:117190	P	xen-4.13.1_02-1.2 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:48976	P	bluez-cups-5.13-5.12.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:49030	P	libpolkit0-32bit-0.113-5.18.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:63190	P	xen-4.10.1_04-1.4 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:50053	P	davfs2 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:50107	P	xen on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73344	P	xen-libs on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73495	P	cups-ddk on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49358	P	xen-libs on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:64402	P	libwavpack1 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49932	P	clamsap on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:67836	P	xen-libs on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49986	P	xen on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49988	P	apache2 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:50042	P	xen on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:66561	P	libyaml-0-2 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73226	P	libssh2-1 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:66653	P	xen-libs on GA media (Moderate)	2020-12-01
oval:com.ubuntu.artful:def:20185244000	V	CVE-2018-5244 on Ubuntu 17.10 (artful) - medium.	2018-01-05
oval:com.ubuntu.xenial:def:201852440000000	V	CVE-2018-5244 on Ubuntu 16.04 LTS (xenial) - medium.	2018-01-05
oval:com.ubuntu.trusty:def:20185244000	V	CVE-2018-5244 on Ubuntu 14.04 LTS (trusty) - medium.	2018-01-05
oval:com.ubuntu.xenial:def:20185244000	V	CVE-2018-5244 on Ubuntu 16.04 LTS (xenial) - medium.	2018-01-05

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