Double Free in Linux kernel - CVE-2019-15504

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Main Vulnerability Database Vulnerabilities #VU20916

Double Free in Linux kernel - CVE-2019-15504

Published: September 6, 2019 / Updated: May 30, 2020


Vulnerability identifier: #VU20916
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-15504
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the "drivers/net/wireless/rsi/rsi_91x_usb.c". A remote attacker can trigger double free error via crafted USB device traffic (which may be remote via usbip or usbredir) and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

Linux kernel
Fedora
kernel
kernel-headers
kernel-tools

How to mitigate CVE-2019-15504

Install updates from vendor's website.

Linux kernel - addressed in versions 4.19.74, 5.2.16, 5.3
kernel - addressed in versions 5.2.11-100.fc29, 5.2.11-200.fc30
kernel-headers - addressed in versions 5.2.11-100.fc29, 5.2.11-200.fc30
kernel-tools - addressed in versions 5.2.11-100.fc29, 5.2.11-200.fc30

External References

Related Security Bulletins