#VU29946 Information disclosure in Linux kernel - CVE-2019-19534

Vulnerability identifier: #VU29946

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-19534

CWE-ID: CWE-200

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 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

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

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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.