Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2019-19921

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
12/02/2020
Last modified:
07/11/2023

Description

runc through 1.0.0-rc9 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. (This vulnerability does not affect Docker due to an implementation detail that happens to block the attack.)

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
7.00
Severity 3.x
HIGH
Vector 2.0
AV:L/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.40 MEDIUM
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
4.40
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:linuxfoundation:runc:*:*:*:*:*:*:*:* 0.1.1 (including)
cpe:2.3:a:linuxfoundation:runc:1.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:runc:1.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:runc:1.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:runc:1.0.0:rc4:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:runc:1.0.0:rc5:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:runc:1.0.0:rc6:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:runc:1.0.0:rc7:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:runc:1.0.0:rc8:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:runc:1.0.0:rc9:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools