CVE-2021-4154

A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.

CVSS v3.0 8.8 HIGH
CVSS v2.0 7.2 HIGH

8.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

7.2^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2034514	Issue Tracking Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b0462726e7ef281c35a7a4ae33e93ee2bc9975b	Mailing List Patch Vendor Advisory
https://cloud.google.com/anthos/clusters/docs/security-bulletins#gcp-2022-002	Third Party Advisory
https://security.netapp.com/advisory/ntap-20220225-0004/	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel:5.14:rc1::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Configuration 2 (hide)

OR	cpe:2.3:a:redhat:virtualization:4.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0::::-:::

Configuration 3 (hide)

OR	cpe:2.3:a:netapp:hci_baseboard_management_controller:h300s:::::::*
	cpe:2.3:a:netapp:hci_baseboard_management_controller:h500s:::::::*
	cpe:2.3:a:netapp:hci_baseboard_management_controller:h700s:::::::*
	cpe:2.3:a:netapp:hci_baseboard_management_controller:h300e:::::::*
	cpe:2.3:a:netapp:hci_baseboard_management_controller:h500e:::::::*
	cpe:2.3:a:netapp:hci_baseboard_management_controller:h700e:::::::*
	cpe:2.3:a:netapp:hci_baseboard_management_controller:h410s:::::::*

Information

Published : 2022-02-04 15:15

Updated : 2023-01-19 07:53

NVD link : CVE-2021-4154

Mitre link : CVE-2021-4154

JSON object : View

CWE

CWE-416

Use After Free

Products Affected

redhat

virtualization
enterprise_linux

linux

linux_kernel

netapp

hci_baseboard_management_controller

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8.8 /10