#VU93046 NULL pointer dereference in Linux kernel - CVE-2024-38637

Vulnerability identifier: #VU93046

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-2024-38637

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 __gb_lights_flash_brightness_set() and gb_lights_light_v4l2_register() functions in drivers/staging/greybus/light.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/8f4a76d477f0cc3c54d512f07f6f88c8e1c1e07b
https://git.kernel.org/stable/c/e2c64246e5dc8c0d35ec41770b85e2b4cafdff21
https://git.kernel.org/stable/c/eac10cf3a97ffd4b4deb0a29f57c118225a42850
https://git.kernel.org/stable/c/330f6bcdcef03f70f81db5f2ed6747af656a09f2
https://git.kernel.org/stable/c/9b41a9b9c8be8c552f10633453fdb509e83b66f8
https://git.kernel.org/stable/c/518e2c46b5dbce40b1aa0100001d03c3ceaa7d38
https://git.kernel.org/stable/c/895cdd9aa9546523df839f9cc1488a0ecc1e0731
https://git.kernel.org/stable/c/a1ba19a1ae7cd1e324685ded4ab563e78fe68648

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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.