Vulnerability CVE-2018-15856

Vulnerability Name:

CVE-2018-15856 (CCN-148917)

Assigned:

2018-03-12

Published:

2018-03-12

Updated:

2019-10-03

Summary:

An infinite loop when reaching EOL unexpectedly in compose/parser.c (aka the keymap parser) in xkbcommon before 0.8.1 could be used by local attackers to cause a denial of service during parsing of crafted keymap files.

CVSS v3 Severity:

5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

3.3 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
2.9 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Low

3.3 Low (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
2.9 Low (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Low

CVSS v2 Severity:

2.1 Low (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 Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

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

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

Vulnerability Type:

CWE-835

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2018-15856

Source: REDHAT
Type: UNKNOWN
RHSA-2019:2079

Source: XF
Type: UNKNOWN
xkbcommon-cve201815856-dos(148917)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/xkbcommon/libxkbcommon/commit/842e4351c2c97de6051cab6ce36b4a81e709a0e1

Source: CCN
Type: wayland-devel mailing list, Fri Aug 3 11:06:54 UTC 2018
[ANNOUNCE] libxkbcommon 0.8.1

Source: MISC
Type: Mailing List, Patch, Third Party Advisory
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html

Source: GENTOO
Type: Third Party Advisory
GLSA-201810-05

Source: UBUNTU
Type: Third Party Advisory
USN-3786-1

Source: UBUNTU
Type: Third Party Advisory
USN-3786-2

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-15856

Source: CCN
Type: xkbcommon Web site
xkbcommon

Vulnerable Configuration:

Configuration 1:

cpe:/a:xkbcommon:xkbcommon:*:*:*:*:*:*:*:* (Version < 0.8.1)

Configuration 2:

cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

OR cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

Configuration RedHat 1:

cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*

Configuration RedHat 2:

cpe:/o:redhat:enterprise_linux:7::client:*:*:*:*:*

Configuration RedHat 3:

cpe:/o:redhat:enterprise_linux:7::computenode:*:*:*:*:*

Configuration RedHat 4:

cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*

Configuration RedHat 5:

cpe:/o:redhat:enterprise_linux:7::workstation:*:*:*:*:*

Configuration CCN 1:

cpe:/a:xkbcommon:libxkbcommon:0.8.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:201815856	V	CVE-2018-15856	2023-06-22
oval:org.opensuse.security:def:7701	P	libxkbcommon-devel-1.3.0-150400.1.13 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:7970	P	libxkbregistry-devel-1.3.0-150400.1.13 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:3109	P	jakarta-commons-fileupload-1.1.1-122.3.1 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:3347	P	python-requests-2.18.2-8.4.2 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:94977	P	libxkbregistry-devel-1.3.0-150400.1.13 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:94739	P	libxkbcommon-devel-1.3.0-150400.1.13 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:229	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2022-06-13
oval:org.opensuse.security:def:506	P	Security update for fribidi (Moderate)	2022-05-31
oval:org.opensuse.security:def:1158	P	Security update for jsoup, jsr-305 (Important)	2022-04-19
oval:org.opensuse.security:def:112926	P	libxkbcommon-devel-1.3.1-1.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:822	P	Security update for the Linux Kernel (Important)	2021-12-06
oval:org.opensuse.security:def:106381	P	libxkbcommon-devel-1.3.1-1.2 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:71336	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:103405	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:96715	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:89750	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:61595	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:1266	P	Security update for the Linux Kernel (Live Patch 4 for SLE 15 SP3) (Important)	2021-09-16
oval:org.opensuse.security:def:69914	P	Security update for java-1_8_0-openjdk (Important)	2021-08-20
oval:org.opensuse.security:def:47488	P	quagga-0.99.22.1-15.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47784	P	libsnmp30-32bit-5.7.3-6.3.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47728	P	libjpeg-turbo-1.5.3-31.7.4 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47919	P	xalan-j2-2.7.0-264.133 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47027	P	libhivex0-1.3.10-4.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48026	P	gnutls-3.3.27-3.3.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48244	P	mutt-1.10.1-55.6.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47042	P	libldap-2_4-2-2.4.41-18.25.1 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:47356	P	libidn-tools-1.28-4.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47783	P	libsndfile1-1.0.25-36.16.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48255	P	pam-modules-12.1-23.12 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47580	P	cracklib-2.9.0-7.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47798	P	libtirpc-netconfig-1.0.1-17.6.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47942	P	aaa_base-13.2+git20140911.61c1681-38.13.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48112	P	libfreetype6-2.6.3-7.15.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47028	P	libhogweed2-2.7.1-9.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48088	P	libXvMC1-1.0.8-7.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48336	P	vsftpd-3.0.2-40.11.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47163	P	systemtap-3.0-7.15 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48184	P	libqt4-32bit-4.8.7-8.8.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:62247	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:71988	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:1904	P	bouncycastle-1.64-1.63 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:70993	P	libmpfr6-4.0.1-1.46 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48844	P	java-1_7_0-openjdk-plugin-1.6.2-2.8.3 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:71106	P	sysconfig-0.84.3-1.4 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48893	P	bash-lang-4.3-83.15.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48940	P	libplist++3-1.12-20.3.2 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48484	P	libblkid1-2.28-40.28 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48782	P	lcms-1.19-17.31 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48909	P	gstreamer-0_10-plugins-base-0.10.36-17.13 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48947	P	libsilc-1_1-2-1.1.10-24.128 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48698	P	libvirt-client-32bit-1.2.5-13.3 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:67753	P	Security update for the Linux Kernel (Live Patch 19 for SLE 15) (Important)	2021-04-28
oval:org.opensuse.security:def:69809	P	Security update for ruby2.5 (Important)	2021-03-24
oval:org.opensuse.security:def:93878	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:61911	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:116815	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:71652	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:107257	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:100591	P	libxkbcommon-devel-0.8.2-3.3.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:49011	P	libgio-fam-2.48.2-12.15.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:49263	P	libxkbcommon-devel on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:64319	P	libcaca-devel on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:50341	P	Security update for libxkbcommon (Low)	2020-12-01
oval:org.opensuse.security:def:66466	P	libgtk-vnc-2_0-0 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73131	P	libXfont2-2 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73249	P	libxkbcommon-devel on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49209	P	libosinfo on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:64406	P	libxkbcommon-devel on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:67653	P	libXp-devel on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:50287	P	Security update for the Linux Kernel (Important)	2020-12-01
oval:org.opensuse.security:def:66558	P	libxkbcommon-devel on GA media (Moderate)	2020-12-01
oval:com.redhat.rhsa:def:20192079	P	RHSA-2019:2079: Xorg security and bug fix update (Moderate)	2019-08-06
oval:com.ubuntu.xenial:def:2018158560000000	V	CVE-2018-15856 on Ubuntu 16.04 LTS (xenial) - medium.	2018-08-25
oval:com.ubuntu.bionic:def:201815856000	V	CVE-2018-15856 on Ubuntu 18.04 LTS (bionic) - medium.	2018-08-25
oval:com.ubuntu.cosmic:def:201815856000	V	CVE-2018-15856 on Ubuntu 18.10 (cosmic) - medium.	2018-08-25
oval:com.ubuntu.cosmic:def:2018158560000000	V	CVE-2018-15856 on Ubuntu 18.10 (cosmic) - medium.	2018-08-25
oval:com.ubuntu.trusty:def:201815856000	V	CVE-2018-15856 on Ubuntu 14.04 LTS (trusty) - medium.	2018-08-25
oval:com.ubuntu.bionic:def:2018158560000000	V	CVE-2018-15856 on Ubuntu 18.04 LTS (bionic) - medium.	2018-08-25
oval:com.ubuntu.xenial:def:201815856000	V	CVE-2018-15856 on Ubuntu 16.04 LTS (xenial) - medium.	2018-08-25

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