Resource management error in Linux kernel decoder vdec driver

1) Resource management error

EUVDB-ID: #VU95057

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/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-2023-52888

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to resource management error within the h264_enc_free_work_buf() function in drivers/media/platform/mediatek/vcodec/encoder/venc/venc_h264_if.c, within the vdec_av1_slice_free_working_buffer() function in drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.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/5c217253c76c94f76d1df31d0bbdcb88dc07be91
http://git.kernel.org/stable/c/303d01082edaf817ee2df53a40dca9da637a2c04
http://git.kernel.org/stable/c/eb005c801ec70ff4307727bd3bd6e8280169ef32

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.