Privilege escalation in Linux Kernel

1) Memory corruption

EUVDB-ID: #VU14625

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-16276

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to an out-of-bounds access condition in the yurex_read function, as defined in the drivers/usb/misc/yurex.c source code file. A remote unauthenticated attacker can execute a specially crafted program that submits malicious, trigger memory corruption and gain elevated privileges or cause the service to crash.

Mitigation

Update to version 4.17.7 or later.

Vulnerable software versions

Linux kernel: 4.4.144 - 4.17.19

External links

http://bugzilla.redhat.com/show_bug.cgi?id=1624507

Q & A

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.