#VU97528 NULL pointer dereference in Linux kernel - CVE-2024-46739

Vulnerability identifier: #VU97528

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-2024-46739

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 hv_uio_channel_cb() function in drivers/uio/uio_hv_generic.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/3d414b64ecf6fd717d7510ffb893c6f23acbf50e
https://git.kernel.org/stable/c/f38f46da80a2ab7d1b2f8fcb444c916034a2dac4
https://git.kernel.org/stable/c/1d8e020e51ab07e40f9dd00b52f1da7d96fec04c
https://git.kernel.org/stable/c/3005091cd537ef8cdb7530dcb2ecfba8d2ef475c
https://git.kernel.org/stable/c/2be373469be1774bbe03b0fa7e2854e65005b1cc
https://git.kernel.org/stable/c/de6946be9c8bc7d2279123433495af7c21011b99
https://git.kernel.org/stable/c/928e399e84f4e80307dce44e89415115c473275b
https://git.kernel.org/stable/c/fb1adbd7e50f3d2de56d0a2bb0700e2e819a329e

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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.