#VU102122 NULL pointer dereference in Linux kernel - CVE-2024-56670
Vulnerability identifier: #VU102122
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-2024-56670
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 gs_start_io() function in drivers/usb/gadget/function/u_serial.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
External links
https://git.kernel.org/stable/c/1247e1df086aa6c17ab53cd1bedce70dd7132765
https://git.kernel.org/stable/c/28b3c03a6790de1f6f2683919ad657840f0f0f58
https://git.kernel.org/stable/c/4cfbca86f6a8b801f3254e0e3c8f2b1d2d64be2b
https://git.kernel.org/stable/c/4efdfdc32d8d6307f968cd99f1db64468471bab1
https://git.kernel.org/stable/c/8ca07a3d18f39b1669927ef536e485787e856df6
https://git.kernel.org/stable/c/c83213b6649d22656b3a4e92544ceeea8a2c6c07
https://git.kernel.org/stable/c/dd6b0ca6025f64ccb465a6a3460c5b0307ed9c44
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.
