CVE-2019-19529: Use After Free

Published Dec 3, 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/mcbausb.c driver, aka CID-4d6636498c41.

Affected Software

48 affected componentsFixes available
Linux Linux kernel<5.3.11
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
6.1.176-16.1.190-16.12.107-16.12.113-17.2.12-1
ubuntu/linux-azure<4.15.0-1066.71~14.04.1
4.15.0-1066.71~14.04.1
ubuntu/linux-aws-hwe<4.15.0-1057.59~16.04.1
4.15.0-1057.59~16.04.1
ubuntu/linux-azure<4.15.0-1066.71
4.15.0-1066.71
ubuntu/linux-gcp<4.15.0-1052.56
4.15.0-1052.56
ubuntu/linux-hwe<4.15.0-74.83~16.04.1
4.15.0-74.83~16.04.1
ubuntu/linux-oracle<4.15.0-1031.34~16.04.1
4.15.0-1031.34~16.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux<4.15.0-74.84
4.15.0-74.84
ubuntu/linux-aws<4.15.0-1057.59
4.15.0-1057.59
ubuntu/linux-aws-5.0<5.0.0-1023.26~18.04.1
5.0.0-1023.26~18.04.1
ubuntu/linux-azure<5.0.0-1028.30~18.04.1
5.0.0-1028.30~18.04.1
ubuntu/linux-azure-5.3<5.3.0-1009.10~18.04.1
5.3.0-1009.10~18.04.1
ubuntu/linux-gcp<5.0.0-1028.29~18.04.1
5.0.0-1028.29~18.04.1
ubuntu/linux-gcp-5.3<5.3.0-1010.11~18.04.1
5.3.0-1010.11~18.04.1
ubuntu/linux-gke-4.15<4.15.0-1050.53
4.15.0-1050.53
ubuntu/linux-gke-5.0<5.0.0-1027.28~18.04.1
5.0.0-1027.28~18.04.1
ubuntu/linux-hwe<5.3.0-26.28~18.04.1
5.3.0-26.28~18.04.1
ubuntu/linux-kvm<4.15.0-1052.52
4.15.0-1052.52
ubuntu/linux-oem<4.15.0-1066.76
4.15.0-1066.76
ubuntu/linux-oem-osp1<5.0.0-1033.38
5.0.0-1033.38
ubuntu/linux-oracle<4.15.0-1031.34
4.15.0-1031.34
ubuntu/linux-oracle-5.0<5.0.0-1009.14~18.04.1
5.0.0-1009.14~18.04.1
ubuntu/linux-raspi2<4.15.0-1053.57
4.15.0-1053.57
ubuntu/linux-snapdragon<4.15.0-1070.77
4.15.0-1070.77
ubuntu/linux-azure-edge*
ubuntu/linux-gcp-edge*
ubuntu/linux-hwe-edge*
ubuntu/linux-aws-fips<4.15.0-2018.18
4.15.0-2018.18
ubuntu/linux-azure-fips<4.15.0-2006.7
4.15.0-2006.7
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-azure-fde*
ubuntu/linux-gke*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-raspi-realtime*
ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. 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 7.2.12-1
  2. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1066.71~14.04.1
  3. Upgrade

    Upgrade ubuntu/linux-aws-hwe to a version that resolves this vulnerability.

    Fixed in 4.15.0-1057.59~16.04.1
  4. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1066.71
  5. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 4.15.0-1052.56
  6. Upgrade

    Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.

    Fixed in 4.15.0-74.83~16.04.1
  7. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 4.15.0-1031.34~16.04.1
  8. Upgrade

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

    Fixed in 4.15.0-74.84
  9. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 4.15.0-1057.59
  10. Upgrade

    Upgrade ubuntu/linux-aws-5.0 to a version that resolves this vulnerability.

    Fixed in 5.0.0-1023.26~18.04.1
  11. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.0.0-1028.30~18.04.1
  12. Upgrade

    Upgrade ubuntu/linux-azure-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0-1009.10~18.04.1
  13. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.0.0-1028.29~18.04.1
  14. Upgrade

    Upgrade ubuntu/linux-gcp-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0-1010.11~18.04.1
  15. Upgrade

    Upgrade ubuntu/linux-gke-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1050.53
  16. Upgrade

    Upgrade ubuntu/linux-gke-5.0 to a version that resolves this vulnerability.

    Fixed in 5.0.0-1027.28~18.04.1
  17. Upgrade

    Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.

    Fixed in 5.3.0-26.28~18.04.1
  18. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 4.15.0-1052.52
  19. Upgrade

    Upgrade ubuntu/linux-oem to a version that resolves this vulnerability.

    Fixed in 4.15.0-1066.76
  20. Upgrade

    Upgrade ubuntu/linux-oem-osp1 to a version that resolves this vulnerability.

    Fixed in 5.0.0-1033.38
  21. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 4.15.0-1031.34
  22. Upgrade

    Upgrade ubuntu/linux-oracle-5.0 to a version that resolves this vulnerability.

    Fixed in 5.0.0-1009.14~18.04.1
  23. Upgrade

    Upgrade ubuntu/linux-raspi2 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1053.57
  24. Upgrade

    Upgrade ubuntu/linux-snapdragon to a version that resolves this vulnerability.

    Fixed in 4.15.0-1070.77
  25. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2018.18
  26. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2006.7

Event History

Dec 3, 2019
CVE Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
CVE Published
via MITRE·03:40 PM
Data Sourced
via MITRE·03:40 PM
Description
Data Sourced
via OSV·04:15 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

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.

2

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.

3

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.

4

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.

5

Who discovered CVE-2019-19529?

CVE-2019-19529 was identified by researchers in the context of security updates for the Linux kernel.

Company

Resources

Contact

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