CVE-2019-19529: Use After Free
In the Linux kernel before 5.3.11, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/net/can/usb/mcbausb.c driver, aka CID-4d6636498c41.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.262-1Fixed in 6.1.176-1Fixed in 6.1.180-1Fixed in 6.12.94-1Fixed in 6.12.101-1Fixed in 7.1.8-1Fixed in 7.1.8-2 - Upgrade
Upgrade
Linux kernel drivers/net/can/usb/mcba_usb.cto a version that resolves this vulnerability.Fixed in 5.3.11 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch CID-4d6636498c41
Event History
Frequently Asked Questions
What is the severity of CVE-2019-19529?
CVE-2019-19529 is classified as a moderate severity vulnerability due to its potential exploitation through malicious USB devices.
How do I fix CVE-2019-19529?
To address CVE-2019-19529, upgrade to a patched version of the Linux kernel, specifically 5.3.11 or later.
What systems are affected by CVE-2019-19529?
CVE-2019-19529 affects various Linux kernel versions prior to 5.3.11, including several Ubuntu and Debian releases.
What is a use-after-free vulnerability as seen in CVE-2019-19529?
A use-after-free vulnerability occurs when memory is accessed after it has been released, potentially allowing unauthorized actions.
Who discovered CVE-2019-19529?
CVE-2019-19529 was identified by researchers in the context of security updates for the Linux kernel.