CVE-2019-19534: Infoleak

Published Nov 4, 2019
·
Updated

An information-leak flaw was found in the Linux kernel's pcan USB driver. When a device using this driver connects to the system, the stack information is leaked to the CAN bus, a controller area network for automobiles. The highest threat with this vulnerability is breach of data confidentiality.

Other sources

In the Linux kernel before 5.3.11, there is an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peakusb/pcanusbcore.c driver, aka CID-f7a1337f0d29.

— Ubuntu

In the Linux kernel, there is an information leak caused by a malicious USB device in the drivers/net/can/usb/peakusb/pcanusbcore.c

Upstream Patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f7a1337f0d29b98733c8824e165fca3371d7d4fd

References:

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11 http://seclists.org/oss-sec/2019/q4/115 https://www.openwall.com/lists/oss-security/2019/12/03/4

— Red Hat

Affected Software

12 affected componentsFixes available
redhat/kernel-rt<0:3.10.0-1160.rt56.1131.el7
0:3.10.0-1160.rt56.1131.el7
redhat/kernel<0:3.10.0-1160.el7
0:3.10.0-1160.el7
redhat/kernel-rt<0:4.18.0-193.rt13.51.el8
0:4.18.0-193.rt13.51.el8
redhat/kernel<0:4.18.0-193.el8
0:4.18.0-193.el8
Linux Linux kernel<5.3.11
Debian Debian Linux=8.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.04
Canonical Ubuntu Linux=19.10
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.11-17.2.12-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/kernel-rt to a version that resolves this vulnerability.

    Fixed in 0:3.10.0-1160.rt56.1131.el7
  2. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 0:3.10.0-1160.el7
  3. Upgrade

    Upgrade redhat/kernel-rt to a version that resolves this vulnerability.

    Fixed in 0:4.18.0-193.rt13.51.el8
  4. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 0:4.18.0-193.el8
  5. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.11-1Fixed in 7.2.12-1
  6. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Fixed in 5.3.11
  7. Configuration

    Add `install peak_usb /bin/true` to `/etc/modprobe.d/disable-peak-usb-canbus.conf` to prevent the module from loading.

    peak_usb kernel module modprobe install directive = /bin/true
  8. Operational

    Restart the system if the peak_usb module is already loaded.

Event History

Nov 4, 2019
CVE Published
12:00 AM
Dec 3, 2019
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
CVE Published
via MITRE·03:38 PM
Data Sourced
via MITRE·03:38 PM
Description
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Dec 13, 2019
Data Sourced
via Red Hat·09:34 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2019-19534?

The severity of CVE-2019-19534 is high due to its potential to breach data confidentiality.

2

How do I fix CVE-2019-19534?

To fix CVE-2019-19534, update your kernel to the recommended versions specified in the security advisories.

3

Which software versions are affected by CVE-2019-19534?

CVE-2019-19534 affects various versions of the Linux kernel, specifically those prior to version 5.3.11 and certain Red Hat kernel versions.

4

What type of vulnerability is CVE-2019-19534?

CVE-2019-19534 is an information-leak vulnerability found in the Linux kernel's pcan USB driver.

5

Who is impacted by CVE-2019-19534?

Users and systems using affected versions of the Linux kernel with the pcan USB driver are impacted by CVE-2019-19534.

Company

Resources

Contact

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