CVE-2019-19529: Use After Free
First published: Tue Dec 03 2019(Updated: )
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/mcba_usb.c driver, aka CID-4d6636498c41.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | <5.3.11 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| Ubuntu Linux | =19.04 | |
| Ubuntu Linux | =19.10 | |
| Linux Kernel | <5.3.11 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =19.04 | |
| Ubuntu | =19.10 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.135-1 6.12.25-1 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
- http://www.openwall.com/lists/oss-security/2019/12/03/4
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4d6636498c41891d0482a914dd570343a838ad79
- https://usn.ubuntu.com/4225-1/
- https://usn.ubuntu.com/4225-2/
- https://usn.ubuntu.com/4226-1/
- https://usn.ubuntu.com/4227-1/
- https://usn.ubuntu.com/4227-2/
- https://launchpad.net/bugs/cve/CVE-2019-19529
- https://git.kernel.org/linus/4d6636498c41891d0482a914dd570343a838ad79
- https://security-tracker.debian.org/tracker/CVE-2019-19529
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19529
- https://nvd.nist.gov/vuln/detail/CVE-2019-19529
- https://ubuntu.com/security/CVE-2019-19529
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.
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