CVE-2023-28642

2023-03-2900:00:00

ubuntu.com

runc

apparmor bypass

symlink vulnerability

upgrade

untrusted container image

security risk

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

9.1%

JSON

runc is a CLI tool for spawning and running containers according to the OCI
specification. It was found that AppArmor can be bypassed when /proc
inside the container is symlinked with a specific mount configuration. This
issue has been fixed in runc version 1.1.5, by prohibiting symlinked
/proc. See PR #3785 for details. users are advised to upgrade. Users
unable to upgrade should avoid using an untrusted container image.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchrunc< 1.1.4-0ubuntu1~18.04.2UNKNOWN
ubuntu20.04noarchrunc< 1.1.4-0ubuntu1~20.04.3UNKNOWN
ubuntu22.04noarchrunc< 1.1.4-0ubuntu1~22.04.3UNKNOWN
ubuntu22.10noarchrunc< 1.1.4-0ubuntu1~22.10.3UNKNOWN
ubuntu23.04noarchrunc< 1.1.4-0ubuntu3.1UNKNOWN
ubuntu16.04noarchrunc< 1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	runc	< 1.1.4-0ubuntu1~18.04.2	UNKNOWN
ubuntu	20.04	noarch	runc	< 1.1.4-0ubuntu1~20.04.3	UNKNOWN
ubuntu	22.04	noarch	runc	< 1.1.4-0ubuntu1~22.04.3	UNKNOWN
ubuntu	22.10	noarch	runc	< 1.1.4-0ubuntu1~22.10.3	UNKNOWN
ubuntu	23.04	noarch	runc	< 1.1.4-0ubuntu3.1	UNKNOWN
ubuntu	16.04	noarch	runc	< 1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4	UNKNOWN