Vulnerability identifier: #VU20894
Vulnerability risk: Low
CVSSv4.0: 4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-416
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 use-after-free error in the drivers/media/usb/dvb-usb/dvb-usb-init.c driver. A local user can use a malicious USB device to trigger use-after-free error and execute arbitrary code on the system with elevated privileges.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel: 5.2 - 5.2.2
External links
https://www.openwall.com/lists/oss-security/2019/08/20/2
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6cf97230cd5f36b7665099083272595c55d72be7
https://syzkaller.appspot.com/bug?id=a53c9c9dd2981bfdbfbcbc1ddbd35595eda8bced
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.