Vulnerability CVE-2018-12021

Vulnerability Name:

CVE-2018-12021 (CCN-147814)

Assigned:

2018-07-03

Published:

2018-07-03

Updated:

2019-05-16

Summary:

Singularity 2.3.0 through 2.5.1 is affected by an incorrect access control on systems supporting overlay file system. When using the overlay option, a malicious user may access sensitive information by exploiting a few specific Singularity features.

CVSS v3 Severity:

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

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

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

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

CVSS v2 Severity:

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

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

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

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

Vulnerability Type:

CWE-200

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2018-12021

Source: MLIST
Type: UNKNOWN
[oss-security] 20190516 Singularity 3.1.0: CVE-2019-11328: namespace privilege escalation and arbitrary file corruption

Source: XF
Type: UNKNOWN
singularity-cve201812021-info-disc(147814)

Source: CCN
Type: Singularity GIT Repository
Singularity 2.5.2 Release

Source: CONFIRM
Type: Release Notes, Third Party Advisory
https://github.com/singularityware/singularity/releases/tag/2.5.2

Vulnerable Configuration:

Configuration 1:

cpe:/a:sylabs:singularity:*:*:*:*:*:*:*:* (Version >= 2.3.0 and <= 2.5.1)

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:201812021	V	CVE-2018-12021	2022-06-30
oval:org.opensuse.security:def:113439	P	singularity-3.8.3-1.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:106840	P	singularity-3.8.3-1.2 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:25554	P	Security update for unzip (Moderate)	2020-12-01
oval:org.opensuse.security:def:25241	P	Security update for java-1_7_1-ibm (Moderate)	2020-12-01
oval:org.opensuse.security:def:24980	P	Security update for ucode-intel (Important)	2020-12-01
oval:org.opensuse.security:def:26450	P	Security update for MozillaThunderbird (Moderate)	2020-12-01
oval:org.opensuse.security:def:25695	P	Security update for gcc9 (Moderate)	2020-12-01
oval:org.opensuse.security:def:25379	P	Security update for xorg-x11-server (Important)	2020-12-01
oval:org.opensuse.security:def:25055	P	Security update for the Linux Kernel (Important)	2020-12-01
oval:org.opensuse.security:def:25753	P	Security update for flash-player (Important)	2020-12-01
oval:org.opensuse.security:def:25613	P	Security update for libsolv (Moderate)	2020-12-01
oval:org.opensuse.security:def:25263	P	Security update for glibc (Important)	2020-12-01
oval:org.opensuse.security:def:25039	P	Security update for binutils (Moderate)	2020-12-01
oval:org.opensuse.security:def:26426	P	Security update for singularity (Moderate)	2020-12-01
oval:org.opensuse.security:def:25754	P	Security update for flash-player (Moderate)	2020-12-01
oval:org.opensuse.security:def:25404	P	Security update for spice (Moderate)	2020-12-01
oval:org.opensuse.security:def:25114	P	Security update for LibVNCServer (Important)	2020-12-01
oval:org.opensuse.security:def:25812	P	Security update for flash-player (Important)	2020-12-01
oval:org.opensuse.security:def:25607	P	Security update for the Linux Kernel (Important)	2020-12-01
oval:org.opensuse.security:def:25322	P	Security update for tigervnc (Critical)	2020-12-01
oval:org.opensuse.security:def:24991	P	Security update for java-1_7_0-openjdk (Important)	2020-12-01
oval:org.opensuse.security:def:26485	P	Security update for singularity (Moderate)	2020-12-01
oval:org.opensuse.security:def:25709	P	Security update for java-1_8_0-ibm (Important)	2020-12-01
oval:org.opensuse.security:def:25463	P	Security update for mailman (Important)	2020-12-01
oval:org.opensuse.security:def:25182	P	Security update for krb5-appl (Important)	2020-12-01
oval:org.opensuse.security:def:26391	P	Security update for MozillaThunderbird (Important)	2020-12-01
oval:org.opensuse.security:def:25666	P	Security update for java-1_8_0-openjdk (Important)	2020-12-01
oval:org.opensuse.security:def:25320	P	Security update for perl-DBI (Important)	2020-12-01
oval:org.opensuse.security:def:25050	P	Security update for nfs-utils (Moderate)	2020-12-01
oval:org.opensuse.security:def:25768	P	Security update for flash-player (Important)	2020-12-01
oval:com.ubuntu.artful:def:201812021000	V	CVE-2018-12021 on Ubuntu 17.10 (artful) - untriaged.	2018-07-05
oval:com.ubuntu.cosmic:def:2018120210000000	V	CVE-2018-12021 on Ubuntu 18.10 (cosmic) - medium.	2018-07-05
oval:com.ubuntu.bionic:def:201812021000	V	CVE-2018-12021 on Ubuntu 18.04 LTS (bionic) - untriaged.	2018-07-05
oval:com.ubuntu.bionic:def:2018120210000000	V	CVE-2018-12021 on Ubuntu 18.04 LTS (bionic) - medium.	2018-07-05
oval:com.ubuntu.cosmic:def:201812021000	V	CVE-2018-12021 on Ubuntu 18.10 (cosmic) - untriaged.	2018-07-05
oval:com.ubuntu.disco:def:2018120210000000	V	CVE-2018-12021 on Ubuntu 19.04 (disco) - medium.	2018-07-05

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