CVE-2023-27561

Published: 3 March 2023

runc through 1.1.4 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. NOTE: this issue exists because of a CVE-2019-19921 regression.

Priority

Cvss 3 Severity Score

7.0

Score breakdown

Status

Package	Release	Status
runc Launchpad, Ubuntu, Debian	bionic	Released (1.1.4-0ubuntu1~18.04.2)
	focal	Released (1.1.4-0ubuntu1~20.04.3)
	jammy	Released (1.1.4-0ubuntu1~22.04.3)
	lunar	Released (1.1.4-0ubuntu3.1)
	trusty	Ignored (end of standard support)
	upstream	Needs triage
	kinetic	Released (1.1.4-0ubuntu1~22.10.3)
	xenial	Released (1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4) Available with Ubuntu Pro

Severity score breakdown

Parameter	Value
Base score	7.0
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

References

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