Vulnerability identifier: #VU90489

Vulnerability risk: Low

CVSSv3.1: 3.2 [AV:L/AC:L/PR:L/UI:U/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-47289

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 include/acpi/acpi_bus.h. 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
http://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e
http://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc
http://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4
http://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4

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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.