Vulnerability identifier: #VU92019
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-667
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 improper locking within the mlx5_sf_dev_remove() function in drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c, within the mlx5_init_one_devl_locked(), mlx5_init_one(), mlx5_uninit_one(), mlx5_init_one_light(), mlx5_uninit_one_light(), probe_one() and remove_one() functions in drivers/net/ethernet/mellanox/mlx5/core/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:
External links
http://git.kernel.org/stable/c/8c91c60858473731bcdaf04fda99fcbcf84420d4
http://git.kernel.org/stable/c/967caa3d37c078e5b95a32094657e6a4cad145f0
http://git.kernel.org/stable/c/c6e77aa9dd82bc18a89bf49418f8f7e961cfccc8
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.