What is CVE-2024-0443?

CVE-2024-0443 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2024-0443 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-0443?

CVE-2024-0443 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-0443?

No patch is currently available for CVE-2024-0443. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-0443 actively exploited?

CVE-2024-0443 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-0443

Medium

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.

Package Linux Kernel

Published 2024-01-12

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-402

CVE-2024-0443 is classified as CWE-402

See CWE-402 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2024-0443 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/errata/RHSA-2023:6583
Red Hat
https://access.redhat.com/errata/RHSA-2023:7077

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2023:7370
Red Hat
https://access.redhat.com/security/cve/CVE-2024-0443

Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=2257968

Issue Tracking Third Party Advisory
Kernel.org
https://lore.kernel.org/linux-block/[email protected]/

Mailing List

Details

CVE ID CVE-2024-0443

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-01-12

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-0443?

CVE-2024-0443 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2024-0443 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-0443?

CVE-2024-0443 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-0443?

No patch is currently available for CVE-2024-0443. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-0443 actively exploited?

No — CVE-2024-0443 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.