Race condition in Linux kernel - CVE-2019-19537

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Main Vulnerability Database Vulnerabilities #VU30569

Race condition in Linux kernel - CVE-2019-19537

Published: December 3, 2019 / Updated: July 17, 2020


Vulnerability identifier: #VU30569
CSH Severity: Low
CVSS v4: 4.1 [CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-19537
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.

In the Linux kernel before 5.2.10, there is a race condition bug that can be caused by a malicious USB device in the USB character device driver layer, aka CID-303911cfc5b9. This affects drivers/usb/core/file.c.


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
kernel (Red Hat package)
kernel-rt (Red Hat package)
RSA Authentication Manager

How to mitigate CVE-2019-19537

Install update from vendor's website.

Linux kernel - update to 5.2.10
kernel (Red Hat package) - addressed in versions 3.10.0-1160.el7, 4.18.0-240.el8
kernel-rt (Red Hat package) - update to 3.10.0-1160.rt56.1131.el7
RSA Authentication Manager - update to 8.4 Patch 10

External References

Related Security Bulletins