Information disclosure in Linux kernel - CVE-2019-19533

Vulnerability identifier: #VU24450

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-19533

CWE-ID: CWE-200

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to an info-leak bug in the drivers/media/usb/ttusb-dec/ttusb_dec.c driver. A local user with physical access can use a malicious USB device and gain unauthorized access to sensitive information on the system.

Linux kernel
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)
RSA Authentication Manager

Install updates from vendor's website.

Linux kernel - update to 5.3.4
kernel (Red Hat package) - update to 4.18.0-240.el8
RSA Authentication Manager - update to 8.4 Patch 10

• http://www.openwall.com/lists/oss-security/2019/12/03/4
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a10feaf8c464c3f9cfdd3a8a7ce17e1c0d498da1
• https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html

• Multiple vulnerabilities in Linux kernel
• Multiple vulnerabilities in Oracle VM Server
• Red Hat Enterprise Linux 8 update for kernel
• RSA Authentication Manager update for third-party components