Out-of-bounds write in Linux kernel

#VU19576 Out-of-bounds write in Linux kernel

Published: 2019-07-31

Vulnerability identifier: #VU19576

Vulnerability risk: Medium

CVSSv3.1: 4.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-13631

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local attacker to cause an out-of-bounds write condition on a targeted virtual host system.

The vulnerability exists due to the out-of-bounds write error in the "parse_hid_report_descriptor" function in the "drivers/input/tablet/gtco.c" file. A local authenticated attacker can insert a malicious USB device that sends a crafted response to the targeted system and cause an out-of-bounds write condition.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Linux kernel: 5.2.1

External links
http://patchwork.kernel.org/patch/11040813/

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.

Latest bulletins with this vulnerability

OpenSUSE Linux update for the Linux Kernel

Slackware Linux update for Slackware 14.2 kernel

Out-of-bounds write in Linux kernel