CVE-2019-19524: Use After Free
First published: Fri Nov 15 2019(Updated: )
A use-after-free flaw was found in the Linux kernel’s input device driver functionality when unplugging a device. A user with physical access could use this flaw to crash the system.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:3.10.0-1160.rt56.1131.el7 | 0:3.10.0-1160.rt56.1131.el7 |
| redhat/kernel-alt | <0:4.14.0-115.21.2.el7a | 0:4.14.0-115.21.2.el7a |
| redhat/kernel | <0:3.10.0-1160.el7 | 0:3.10.0-1160.el7 |
| redhat/kernel-rt | <0:4.18.0-240.rt7.54.el8 | 0:4.18.0-240.rt7.54.el8 |
| redhat/kernel | <0:4.18.0-240.el8 | 0:4.18.0-240.el8 |
| Linux Kernel | <5.3.12 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| Ubuntu Linux | =19.04 | |
| Ubuntu Linux | =19.10 | |
| Debian GNU/Linux | =8.0 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 | |
| Android | ||
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =19.04 | |
| Ubuntu | =19.10 | |
| Debian | =8.0 |
Remedy
To mitigate this issue for the Red Hat Enterprise Linux 7 or higher version, prevent module ff-memless from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://www.cve.org/CVERecord?id=CVE-2019-19524 https://nvd.nist.gov/vuln/detail/CVE-2019-19524
- https://bugzilla.redhat.com/show_bug.cgi?id=1783459
- https://access.redhat.com/errata/RHSA-2020:4062
- https://access.redhat.com/errata/RHSA-2020:2104
- https://access.redhat.com/errata/RHSA-2020:4060
- https://access.redhat.com/errata/RHSA-2020:4609
- https://access.redhat.com/errata/RHSA-2020:4431
- https://access.redhat.com/security/cve/cve-2019-19524
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
- http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- http://www.openwall.com/lists/oss-security/2019/12/03/4
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.12
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa3a5a1880c91bb92594ad42dfe9eedad7996b86
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- https://seclists.org/bugtraq/2020/Jan/10
- 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://usn.ubuntu.com/4228-1/
- https://usn.ubuntu.com/4228-2/
- https://launchpad.net/bugs/cve/CVE-2019-19524
- http://seclists.org/oss-sec/2019/q4/115
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1783460
- https://access.redhat.com/solutions/41278
- https://source.android.com/docs/security/bulletin/2020-04-01 (Advisory)
- https://git.kernel.org/linus/fa3a5a1880c91bb92594ad42dfe9eedad7996b86
- https://security-tracker.debian.org/tracker/CVE-2019-19524
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19524
- https://nvd.nist.gov/vuln/detail/CVE-2019-19524
- https://ubuntu.com/security/CVE-2019-19524
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2019-19524?
CVE-2019-19524 is classified as a high severity vulnerability due to its potential to allow system crashes with physical access.
How do I fix CVE-2019-19524?
To fix CVE-2019-19524, ensure your kernel version is updated to at least 5.3.12 or the appropriate patched version for your distribution.
What systems are affected by CVE-2019-19524?
CVE-2019-19524 affects various Linux kernel versions prior to 5.3.12, including specific versions of Red Hat, Ubuntu, Debian, and Android.
Can CVE-2019-19524 be exploited remotely?
No, exploitation of CVE-2019-19524 requires physical access to the vulnerable system through a malicious USB device.
What type of vulnerability is CVE-2019-19524?
CVE-2019-19524 is a use-after-free vulnerability in the Linux kernel's input device driver functionality.
- collector/redhat-cve
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2019-19524
- agent/severity
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/references
- collector/usn-cve
- source/Ubuntu
- agent/description
- agent/last-modified-date
- agent/trending
- agent/source
- agent/event
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/security-tracker-debian
- source/Debian
- collector/android-source
- source/Android
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- package-manager/redhat
- vendor/linux
- canonical/linux kernel
- vendor/canonical
- canonical/ubuntu linux
- version/ubuntu linux/14.04
- version/ubuntu linux/16.04
- version/ubuntu linux/18.04
- version/ubuntu linux/19.04
- version/ubuntu linux/19.10
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/8.0
- package-manager/debian
- vendor/google
- canonical/android
- canonical/ubuntu
- version/ubuntu/14.04
- version/ubuntu/16.04
- version/ubuntu/18.04
- version/ubuntu/19.04
- version/ubuntu/19.10
- canonical/debian
- version/debian/8.0