Information disclosure in Linux kernel USB driver

1) Information disclosure

EUVDB-ID: #VU29946

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-19534

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output within the USB driver in drivers/net/can/usb/peak_usb/pcan_usb_core.c driver. A local use can use a specially crafted USB devices to gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 5.3.1 - 5.3.10

External links

http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
http://www.openwall.com/lists/oss-security/2019/12/03/4
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f7a1337f0d29b98733c8824e165fca3371d7d4fd
http://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
http://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
http://usn.ubuntu.com/4225-1/
http://usn.ubuntu.com/4225-2/
http://usn.ubuntu.com/4226-1/
http://usn.ubuntu.com/4227-1/
http://usn.ubuntu.com/4227-2/
http://usn.ubuntu.com/4228-1/
http://usn.ubuntu.com/4228-2/

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.