Information disclosure in Linux kernel - CVE-2019-19534

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Main Vulnerability Database Vulnerabilities #VU29946

Information disclosure in Linux kernel - CVE-2019-19534

Published: July 15, 2020


Vulnerability identifier: #VU29946
CSH Severity: Low
CVSS v4: 4.8 [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]
CVE-ID: CVE-2019-19534
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

Linux kernel
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64
Oracle VM Server for x86
kernel (Red Hat package)
kernel-rt (Red Hat package)
RSA Authentication Manager

How to mitigate CVE-2019-19534

Install updates from vendor's website.

Linux kernel - update to 5.3.11
kernel (Red Hat package) - addressed in versions 3.10.0-1160.el7, 4.18.0-193.el8
kernel-rt (Red Hat package) - addressed in versions 3.10.0-1160.rt56.1131.el7, 4.18.0-193.rt13.51.el8
RSA Authentication Manager - update to 8.4 Patch 10

External References

Related Security Bulletins