Improper locking in Linux kernel mhi host driver

1) Improper locking

EUVDB-ID: #VU91537

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-52493

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the parse_xfer_event() function in drivers/bus/mhi/host/main.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

http://git.kernel.org/stable/c/20a6dea2d1c68d4e03c6bb50bc12e72e226b5c0e
http://git.kernel.org/stable/c/6e4c84316e2b70709f0d00c33ba3358d9fc8eece
http://git.kernel.org/stable/c/3c5ec66b4b3f6816f3a6161538672e389e537690
http://git.kernel.org/stable/c/eaefb9464031215d63c0a8a7e2bfaa00736aa17e
http://git.kernel.org/stable/c/b8eff20d87092e14cac976d057cb0aea2f1d0830
http://git.kernel.org/stable/c/01bd694ac2f682fb8017e16148b928482bc8fa4b

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.