CVE-2019-19921: runc through 1.0.0-rc9 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go

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.)

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack vector

Local

Complexity

High

Privileges

Low

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.4% · higher than 37% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

DL

Debian Linux · Debian

9.0; 10.0 · source: NVD

LE

Leap · Opensuse

15.1 · source: NVD

OC

Openshift Container Platform · Redhat

4.1; 4.2 · source: NVD

RU

Runc · Linuxfoundation

through 0.1.1; 1.0.0; 1.0.0; 1.0.0; 1.0.0; 1.0.0; +4 more · source: NVD

UL

Ubuntu Linux · Canonical

18.04; 19.10 · source: NVD