Double Free in Linux kernel - CVE-2019-15504
Published: September 6, 2019 / Updated: May 30, 2020
Vulnerability identifier: #VU20916
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2019-15504
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2019-15504
Install updates from vendor's website.
Sources
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O3RUDQJXRJQVGHCGR4YZWTQ3ECBI7TXH/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T4JZ6AEUKFWBHQAROGMQARJ274PQP2QP/
- https://lore.kernel.org/lkml/20190819220230.10597-1-benquike@gmail.com/
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.16
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.74
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3