#VU85581 Memory leak in Linux kernel - CVE-2024-0443

Vulnerability identifier: #VU85581

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-0443

CWE-ID: CWE-401

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description
The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak in the blkgs destruction path in block/blk-cgroup.c. A local user can perform denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://access.redhat.com/security/cve/CVE-2024-0443
https://bugzilla.redhat.com/show_bug.cgi?id=2257968
https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/
https://access.redhat.com/errata/RHSA-2023:7077

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.