#VU96516 Use-after-free in Linux kernel - CVE-2024-44932

Vulnerability identifier: #VU96516

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-44932

CWE-ID: CWE-416

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 escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the idpf_vport_intr_napi_dis_all() and idpf_vport_intr_rel() functions in drivers/net/ethernet/intel/idpf/idpf_txrx.c, within the idpf_vport_stop(), idpf_vport_open() and idpf_send_map_unmap_queue_vector_msg() functions in drivers/net/ethernet/intel/idpf/idpf_lib.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.10, 6.10.1, 6.10.2, 6.10.3, 6.10.4

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External links
https://git.kernel.org/stable/c/3cde714b0e77206ed1b5cf31f28c18ba9ae946fd
https://git.kernel.org/stable/c/290f1c033281c1a502a3cd1c53c3a549259c491f
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.5
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11

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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.