Out-of-bounds read in Linux kernel bluetooth driver

1) Out-of-bounds read

EUVDB-ID: #VU90323

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-2024-26890

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the sizeof() function in drivers/bluetooth/hci_h5.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

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/dd163fa34c483f1674aa2510accce11a224f649e
https://git.kernel.org/stable/c/2f232bc389a4f5943c40733582f9edf77b89e499
https://git.kernel.org/stable/c/0c657e641df1e77d6087688190f632cad9c0439b
https://git.kernel.org/stable/c/de4e88ec58c4202efd1f02eebb4939bbf6945358

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.