SB2019082317 - Double Free in Linux kernel
Published: August 23, 2019 Updated: May 30, 2020
Security Bulletin ID
SB2019082317
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Double Free (CVE-ID: CVE-2019-15504)
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.
Remediation
Install update from vendor's website.
References
- 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