Vulnerability identifier: #VU92931
Vulnerability risk: Low
CVSSv3.1: 7.7 [AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-362
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 escalate privileges on the system.
The vulnerability exists due to a race condition within the rpmsg_ctrldev_release_device(), rpmsg_chrdev_probe() and rpmsg_chrdev_remove() functions in drivers/rpmsg/rpmsg_char.c. A local user can escalate privileges on the system.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel:
External links
http://git.kernel.org/stable/c/74d85e9fbc7022a4011102c7474a9c7aeb704a35
http://git.kernel.org/stable/c/70cb4295ec806b663665e1d2ed15caab6159880e
http://git.kernel.org/stable/c/da27b834c1e0222e149e06caddf7718478086d1b
http://git.kernel.org/stable/c/1dbb206730f3e5ce90014ad569ddf8167ec4124a
http://git.kernel.org/stable/c/85aba11a8ea92a8eef2de95ebbe063086fd62d9c
http://git.kernel.org/stable/c/d6cdc6ae542845d4d0ac8b6d99362bde7042a3c7
http://git.kernel.org/stable/c/b7fb2dad571d1e21173c06cef0bced77b323990a
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.