NVD

CVE-2024-0443 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgroup_rstat_flush() is only called at css_release_work_fn(), which is called when the blkcg reference count reaches 0. This circular dependency will prevent blkcg and some blkgs from being freed after they are made offline. This issue may allow an attacker with a local access to cause system instability, such as an out of memory error.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

CNA: Red Hat, Inc.

Base Score: 5.5 MEDIUM

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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://access.redhat.com/errata/RHSA-2023:6583
https://access.redhat.com/errata/RHSA-2023:6583
https://access.redhat.com/errata/RHSA-2023:7077	Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7077	Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7370
https://access.redhat.com/errata/RHSA-2023:7370
https://access.redhat.com/security/cve/CVE-2024-0443	Third Party Advisory
https://access.redhat.com/security/cve/CVE-2024-0443	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2257968	Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2257968	Issue Tracking Third Party Advisory
https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/	Mailing List
https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/	Mailing List

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-668	Exposure of Resource to Wrong Sphere	NIST
CWE-402	Transmission of Private Resources into a New Sphere ('Resource Leak')	Red Hat, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Initial Analysis by NIST 1/18/2024 3:16:39 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added	CWE		NIST CWE-668
Added	CPE Configuration		OR cpe:2.3:o:fedoraproject:fedora:39:::::::
Added	CPE Configuration		OR cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 6.2 up to (excluding) 6.4 cpe:2.3:o:linux:linux_kernel:6.4:rc1::::::* cpe:2.3:o:linux:linux_kernel:6.4:rc2::::::* cpe:2.3:o:linux:linux_kernel:6.4:rc3::::::* cpe:2.3:o:linux:linux_kernel:6.4:rc4::::::* cpe:2.3:o:linux:linux_kernel:6.4:rc5::::::* cpe:2.3:o:linux:linux_kernel:6.4:rc6::::::*
Added	CPE Configuration		OR cpe:2.3:o:redhat:enterprise_linux:8.0::::::: cpe:2.3:o:redhat:enterprise_linux:9.0:::::::
Changed	Reference Type	https://access.redhat.com/errata/RHSA-2023:7077 No Types Assigned	https://access.redhat.com/errata/RHSA-2023:7077 Third Party Advisory
Changed	Reference Type	https://access.redhat.com/security/cve/CVE-2024-0443 No Types Assigned	https://access.redhat.com/security/cve/CVE-2024-0443 Third Party Advisory
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=2257968 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=2257968 Issue Tracking, Third Party Advisory
Changed	Reference Type	https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/ No Types Assigned	https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/ Mailing List

New CVE Received from Red Hat, Inc. 1/11/2024 7:15:45 PM

Action	Type	New Value
Added	Description	Record truncated, showing 500 of 512 characters. View Entire Change Record A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgroup_rstat_flush() is only called at css_release_work_fn(), which is called when the blkcg reference count reaches 0. This circular dependency will prevent blkcg and some blkgs from being freed after they are made offline. This issue may allow an attacker with a local access to cause system instability, such as an out of m
Added	CVSS V3.1	Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added	CWE	Red Hat, Inc. CWE-402
Added	Reference	Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2024-0443 [No types assigned]
Added	Reference	Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2257968 [No types assigned]
Added	Reference	Red Hat, Inc. https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/ [No types assigned]

Quick Info

CVE Dictionary Entry:
CVE-2024-0443
NVD Published Date:
01/11/2024
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.

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