#VU100178 NULL pointer dereference in Linux kernel - CVE-2024-50239

Vulnerability identifier: #VU100178

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-2024-50239

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 qmp_usb_legacy_probe() function in drivers/phy/qualcomm/phy-qcom-qmp-usb-legacy.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/7e8066811a2c43fbb5f53c2c26d389e4bab9da34
https://git.kernel.org/stable/c/b1cffd00daa9cf499b49a0da698eff5032914f6e
https://git.kernel.org/stable/c/29240130ab77c80bea1464317ae2a5fd29c16a0c

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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.