CVE-2019-16234: Null Pointer Dereference

Published Sep 11, 2019
·
Updated

drivers/net/wireless/intel/iwlwifi/pcie/trans.c in the Linux kernel 5.2.14 does not check the allocworkqueue return value, leading to a NULL pointer dereference.

Affected Software

60 affected componentsFixes available
Linux Linux kernel=5.2.14
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
openSUSE Leap=15.0
openSUSE Leap=15.1
debian/linux<=6.1.176-1, <=6.1.190-1, <=6.12.107-1, <=6.12.113-1, <=7.2.12-1
ubuntu/linux-aws<4.4.0-1066.70
4.4.0-1066.70
ubuntu/linux-azure<4.15.0-1082.92~14.04.1
4.15.0-1082.92~14.04.1
ubuntu/linux-lts-xenial<4.4.0-178.208~14.04.1
4.4.0-178.208~14.04.1
ubuntu/linux<4.4.0-178.208
4.4.0-178.208
ubuntu/linux-aws<4.4.0-1106.117
4.4.0-1106.117
ubuntu/linux-aws-hwe<4.15.0-1066.70~16.04.1
4.15.0-1066.70~16.04.1
ubuntu/linux-azure<4.15.0-1082.92~16.04.1
4.15.0-1082.92~16.04.1
ubuntu/linux-gcp<4.15.0-1061.65
4.15.0-1061.65
ubuntu/linux-hwe<4.15.0-99.100~16.04.1
4.15.0-99.100~16.04.1
ubuntu/linux-kvm<4.4.0-1070.77
4.4.0-1070.77
ubuntu/linux-oracle<4.15.0-1038.42~16.04.1
4.15.0-1038.42~16.04.1
ubuntu/linux-raspi2<4.4.0-1132.141
4.4.0-1132.141
ubuntu/linux-snapdragon<4.4.0-1136.144
4.4.0-1136.144
ubuntu/linux-hwe-edge*
ubuntu/linux-fips<4.4.0-1033.38
4.4.0-1033.38
ubuntu/linux-fips*
ubuntu/linux<4.15.0-99.100
4.15.0-99.100
ubuntu/linux-aws<4.15.0-1066.70
4.15.0-1066.70
ubuntu/linux-aws-5.3<5.3.0-1017.18~18.04.1
5.3.0-1017.18~18.04.1
ubuntu/linux-azure-5.3<5.3.0-1020.21~18.04.1
5.3.0-1020.21~18.04.1
ubuntu/linux-gcp-5.3<5.3.0-1018.19~18.04.1
5.3.0-1018.19~18.04.1
ubuntu/linux-gke-4.15<4.15.0-1058.61
4.15.0-1058.61
ubuntu/linux-gke-5.0<5.0.0-1035.36
5.0.0-1035.36
ubuntu/linux-gke-5.3<5.3.0-1018.19~18.04.1
5.3.0-1018.19~18.04.1
ubuntu/linux-hwe<5.3.0-51.44~18.04.2
5.3.0-51.44~18.04.2
ubuntu/linux-kvm<4.15.0-1059.60
4.15.0-1059.60
ubuntu/linux-oem<4.15.0-1080.90
4.15.0-1080.90
ubuntu/linux-oem-osp1<5.0.0-1050.55
5.0.0-1050.55
ubuntu/linux-oracle<4.15.0-1038.42
4.15.0-1038.42
ubuntu/linux-oracle-5.3<5.3.0-1016.18~18.04.1
5.3.0-1016.18~18.04.1
ubuntu/linux-raspi2<4.15.0-1061.65
4.15.0-1061.65
ubuntu/linux-raspi2-5.3<5.3.0-1023.25~18.04.1
5.3.0-1023.25~18.04.1
ubuntu/linux-snapdragon<4.15.0-1077.84
4.15.0-1077.84
ubuntu/linux-aws-5.0*
ubuntu/linux-azure*
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-edge*
ubuntu/linux-hwe-edge*
ubuntu/linux-oracle-5.0*
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-fips<4.15.0-1029.34
4.15.0-1029.34
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-azure-fde*
ubuntu/linux-gke*
ubuntu/linux-raspi2*
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 ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 4.4.0-1066.70
  2. Upgrade

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

    Fixed in 4.15.0-1082.92~14.04.1
  3. Upgrade

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

    Fixed in 4.4.0-178.208~14.04.1
  4. Upgrade

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

    Fixed in 4.4.0-178.208
  5. Upgrade

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

    Fixed in 4.4.0-1106.117
  6. Upgrade

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

    Fixed in 4.15.0-1066.70~16.04.1
  7. Upgrade

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

    Fixed in 4.15.0-1082.92~16.04.1
  8. Upgrade

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

    Fixed in 4.15.0-1061.65
  9. Upgrade

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

    Fixed in 4.15.0-99.100~16.04.1
  10. Upgrade

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

    Fixed in 4.4.0-1070.77
  11. Upgrade

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

    Fixed in 4.15.0-1038.42~16.04.1
  12. Upgrade

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

    Fixed in 4.4.0-1132.141
  13. Upgrade

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

    Fixed in 4.4.0-1136.144
  14. Upgrade

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

    Fixed in 4.4.0-1033.38
  15. Upgrade

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

    Fixed in 4.15.0-99.100
  16. Upgrade

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

    Fixed in 4.15.0-1066.70
  17. Upgrade

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

    Fixed in 5.3.0-1017.18~18.04.1
  18. Upgrade

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

    Fixed in 5.3.0-1020.21~18.04.1
  19. Upgrade

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

    Fixed in 5.3.0-1018.19~18.04.1
  20. Upgrade

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

    Fixed in 4.15.0-1058.61
  21. Upgrade

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

    Fixed in 5.0.0-1035.36
  22. Upgrade

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

    Fixed in 5.3.0-1018.19~18.04.1
  23. Upgrade

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

    Fixed in 5.3.0-51.44~18.04.2
  24. Upgrade

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

    Fixed in 4.15.0-1059.60
  25. Upgrade

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

    Fixed in 4.15.0-1080.90
  26. Upgrade

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

    Fixed in 5.0.0-1050.55
  27. Upgrade

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

    Fixed in 4.15.0-1038.42
  28. Upgrade

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

    Fixed in 5.3.0-1016.18~18.04.1
  29. Upgrade

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

    Fixed in 4.15.0-1061.65
  30. Upgrade

    Upgrade ubuntu/linux-raspi2-5.3 to a version that resolves this vulnerability.

    Fixed in 5.3.0-1023.25~18.04.1
  31. Upgrade

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

    Fixed in 4.15.0-1077.84
  32. Upgrade

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

    Fixed in 4.15.0-2018.18
  33. Upgrade

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

    Fixed in 4.15.0-2006.7
  34. Upgrade

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

    Fixed in 4.15.0-1029.34

Event History

Sep 11, 2019
CVE Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
CVE Published
via MITRE·03:29 PM
Data Sourced
via MITRE·03:29 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-2019-16234?

CVE-2019-16234 has a moderate severity due to the potential for a NULL pointer dereference that may lead to a denial of service.

2

How do I fix CVE-2019-16234?

To fix CVE-2019-16234, users should update their Linux kernel to a patched version greater than 5.2.14.

3

Which Linux distributions are affected by CVE-2019-16234?

CVE-2019-16234 affects Linux kernel version 5.2.14, as well as specific versions of Ubuntu 16.04 and 18.04, and openSUSE Leap 15.0 and 15.1.

4

What are the potential impacts of CVE-2019-16234?

The potential impacts of CVE-2019-16234 include system crashes or denial of service due to kernel failure.

5

Is CVE-2019-16234 specific to any particular hardware?

CVE-2019-16234 is related to the Intel wireless drivers in the Linux kernel and not tied to specific hardware.

Company

Resources

Contact

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