#VU102146 NULL pointer dereference in Linux kernel - CVE-2024-53238

Vulnerability identifier: #VU102146

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-2024-53238

CWE-ID: CWE-476

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 a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the btusb_mtk_claim_iso_intf() function in drivers/bluetooth/btusb.c, within the btmtk_usb_isointf_init() function in drivers/bluetooth/btmtk.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/1219c211ccd061cde002cc5708692efca515a7a0
https://git.kernel.org/stable/c/61c5a3def90ac729a538e5ca5ff7f461cff72776
https://git.kernel.org/stable/c/d8bd79f0eea9c07d90ce870a714ab5c10afaa4b3

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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.