Vulnerability CVE-2018-20743

Vulnerability Name:

CVE-2018-20743 (CCN-156232)

Assigned:

2019-01-14

Published:

2019-01-14

Updated:

2019-07-23

Summary:

murmur in Mumble through 1.2.19 before 2018-08-31 mishandles multiple concurrent requests that are persisted in the database, which allows remote attackers to cause a denial of service (daemon hang or crash) via a message flood.

CVSS v3 Severity:

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

Exploitability Metrics:	Attack Vector (AV): Network 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): High

5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network 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:

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

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

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

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

Vulnerability Type:

CWE-20

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2018-20743

Source: SUSE
Type: UNKNOWN
openSUSE-SU-2019:1794

Source: SUSE
Type: UNKNOWN
openSUSE-SU-2019:1876

Source: SUSE
Type: UNKNOWN
openSUSE-SU-2020:0137

Source: MISC
Type: Issue Tracking, Mailing List, Third Party Advisory
https://bugs.debian.org/919249

Source: CCN
Type: Debian Bug report logs - #919249
mumble: CVE-2018-20743: instability and crash due to crafted message flooding

Source: XF
Type: UNKNOWN
mumble-cve201820743-dos(156232)

Source: CCN
Type: mumble GIT Repository
Rate limiting #3505

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/mumble-voip/mumble/issues/3505

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/mumble-voip/mumble/pull/3510

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/mumble-voip/mumble/pull/3512

Source: MLIST
Type: Third Party Advisory
[debian-lts-announce] 20190206 [SECURITY] [DLA 1661-1] mumble security update

Source: DEBIAN
Type: Third Party Advisory
DSA-4402

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-20743

Vulnerable Configuration:

Configuration 1:

cpe:/a:mumble:mumble:*:*:*:*:*:*:*:* (Version <= 1.2.19)

Configuration 2:

cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:mumble:mumble:1.2.19:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:201820743	V	CVE-2018-20743	2022-06-30
oval:org.opensuse.security:def:112999	P	mumble-1.3.4-2.7 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:93434	P	(Moderate)	2021-12-06
oval:org.opensuse.security:def:106445	P	mumble-1.3.4-2.7 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:63043	P	rpm-build-4.14.1-29.46 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:62362	P	yast2-users-4.3.10-1.41 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:62385	P	docker-libnetwork-0.7.0.1+gitr2908_55e924b8a842-4.31.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:62361	P	yast2-security-4.3.16-1.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:74296	P	Security update for ffmpeg (Important)	2021-07-14
oval:org.opensuse.security:def:62841	P	ant-1.9.10-1.34 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:62562	P	libmad-devel-0.15.1b-3.16 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:63407	P	jakarta-taglibs-standard-1.1.1-2.42 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:63181	P	sblim-sfcb-1.4.9-3.7 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:25338	P	Security update for java-1_7_0-openjdk (Important)	2020-12-01
oval:org.opensuse.security:def:25727	P	Security update for libzypp (Moderate)	2020-12-01
oval:org.opensuse.security:def:25572	P	Security update for grub2 (Important)	2020-12-01
oval:org.opensuse.security:def:26409	P	Security update for lame (Important)	2020-12-01
oval:org.opensuse.security:def:64076	P	Security update for samba (Important)	2020-12-01
oval:org.opensuse.security:def:25073	P	Security update for sqlite3 (Important)	2020-12-01
oval:org.opensuse.security:def:64230	P	cpio on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:63868	P	Security update for sssd (Moderate)	2020-12-01
oval:org.opensuse.security:def:25281	P	Security update for squid (Important)	2020-12-01
oval:org.opensuse.security:def:25713	P	Security update for the Linux Kernel (Important)	2020-12-01
oval:org.opensuse.security:def:25422	P	Security update for postgresql10 (Important)	2020-12-01
oval:org.opensuse.security:def:25771	P	Security update for the Linux Kernel (Important)	2020-12-01
oval:org.opensuse.security:def:25625	P	Security update for ImageMagick (Moderate)	2020-12-01
oval:org.opensuse.security:def:25009	P	Security update for libsolv, libzypp, zypper (Moderate)	2020-12-01
oval:org.opensuse.security:def:26444	P	Security update for mumble (Moderate)	2020-12-01
oval:org.opensuse.security:def:64118	P	Security update for tomcat (Important)	2020-12-01
oval:org.opensuse.security:def:63734	P	Security update for the Linux Kernel (Important)	2020-12-01
oval:org.opensuse.security:def:25200	P	Security update for java-1_8_0-ibm (Important)	2020-12-01
oval:org.opensuse.security:def:24998	P	Security update for tcpdump (Moderate)	2020-12-01
oval:org.opensuse.security:def:74170	P	Security update for php7 (Moderate)	2020-12-01
oval:org.opensuse.security:def:63974	P	Security update for transfig (Low)	2020-12-01
oval:org.opensuse.security:def:100223	P	(Moderate)	2020-09-03
oval:org.opensuse.security:def:93510	P	Security update for mumble (Moderate)	2020-01-29
oval:org.opensuse.security:def:100147	P	Security update for mumble (Moderate)	2019-08-14
oval:org.opensuse.security:def:109920	P	Security update for mumble (Moderate)	2019-07-23
oval:com.ubuntu.bionic:def:201820743000	V	CVE-2018-20743 on Ubuntu 18.04 LTS (bionic) - medium.	2019-01-25
oval:com.ubuntu.cosmic:def:2018207430000000	V	CVE-2018-20743 on Ubuntu 18.10 (cosmic) - medium.	2019-01-25
oval:com.ubuntu.disco:def:2018207430000000	V	CVE-2018-20743 on Ubuntu 19.04 (disco) - medium.	2019-01-25
oval:com.ubuntu.cosmic:def:201820743000	V	CVE-2018-20743 on Ubuntu 18.10 (cosmic) - medium.	2019-01-25
oval:com.ubuntu.bionic:def:2018207430000000	V	CVE-2018-20743 on Ubuntu 18.04 LTS (bionic) - medium.	2019-01-25
oval:com.ubuntu.trusty:def:201820743000	V	CVE-2018-20743 on Ubuntu 14.04 LTS (trusty) - medium.	2019-01-25
oval:com.ubuntu.xenial:def:2018207430000000	V	CVE-2018-20743 on Ubuntu 16.04 LTS (xenial) - medium.	2019-01-25
oval:com.ubuntu.xenial:def:201820743000	V	CVE-2018-20743 on Ubuntu 16.04 LTS (xenial) - medium.	2019-01-25

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