CVE-2019-19921

Publication date 12 February 2020

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.0 · High

Score breakdown

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.)

Status

Package Ubuntu Release Status
runc 23.04 lunar
Fixed 1.0.0~rc10-0ubuntu1
22.10 kinetic
Fixed 1.0.0~rc10-0ubuntu1
22.04 LTS jammy
Fixed 1.0.0~rc10-0ubuntu1
21.10 impish
Fixed 1.0.0~rc10-0ubuntu1
21.04 hirsute
Fixed 1.0.0~rc10-0ubuntu1
20.10 groovy
Fixed 1.0.0~rc10-0ubuntu1
20.04 LTS focal
Fixed 1.0.0~rc10-0ubuntu1
19.10 eoan
Fixed 1.0.0~rc10-0ubuntu1~19.10.2
19.04 disco Ignored end of life
18.04 LTS bionic
Fixed 1.0.0~rc10-0ubuntu1~18.04.2
16.04 LTS xenial
14.04 LTS trusty Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
runc

Severity score breakdown

Parameter Value
Base score 7.0 · High
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H