Vulnerability identifier: #VU89054
Vulnerability 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:
CWE-ID:
CWE-20
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 insufficient validation of user-supplied input within the amdgpu_vm_bo_insert_map(), amdgpu_vm_bo_map(), amdgpu_vm_bo_replace_map(), and amdgpu_vm_bo_clear_mappings() functions in drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c. A local user can pass specially crafted input to the driver and perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Linux kernel:
External links
http://git.kernel.org/stable/c/6fef2d4c00b5b8561ad68dd2b68173f5c6af1e75
http://git.kernel.org/stable/c/8b12fc7b032633539acdf7864888b0ebd49e90f2
http://git.kernel.org/stable/c/212e3baccdb1939606420d88f7f52d346b49a284
http://git.kernel.org/stable/c/ef13eeca7c79136bc38e21eb67322c1cbd5c40ee
http://git.kernel.org/stable/c/b1f04b9b1c5317f562a455384c5f7473e46bdbaa
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.