Vulnerability identifier: #VU90543
Vulnerability 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:
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 vpu_enc_check_ap_inst() function in drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c, within the fops_vcodec_open(), fops_vcodec_release() and mtk_vcodec_probe() functions in drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c, within the mtk_vcodec_vpu_reset_enc_handler() function in drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c. A local user can perform a denial of service (DoS) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel:
External links
http://git.kernel.org/stable/c/41671f0c0182b2bae74ca7e3b0f155559e3e2fc5
http://git.kernel.org/stable/c/51c84a8aac6e3b59af2b0e92ba63cabe2e641a2d
http://git.kernel.org/stable/c/afaaf3a0f647a24a7bf6a2145d8ade37baaf75ad
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.