CVE-2019-19947: Medium severity Linux Linux kernel vulnerability

Published Dec 23, 2019
·
Updated

In the Linux kernel through 5.4.6, there are information leaks of uninitialized memory to a USB device in the drivers/net/can/usb/kvaserusb/kvaserusbleaf.c driver, aka CID-da2311a6385c.

Affected Software

71 affected componentsFixes available
Linux Linux kernel<=5.4.6
Debian Debian Linux=8.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
NetApp Active Iq Unified Manager Vmware Vsphere
NetApp Cloud Backup
NetApp Data Availability Services
NetApp E-Series SANtricity OS Controller>=11.0<=11.70.2
NetApp Fas\/aff Baseboard Management Controller
NetApp Hci Baseboard Management Controller=h610s
NetApp Solidfire \& Hci Management Node
NetApp Steelstore Cloud Integrated Storage
NetApp Aff Baseboard Management Controller=a700s
NetApp Solidfire Baseboard Management Controller
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.11-17.2.12-1
ubuntu/linux-aws<4.4.0-1075.79
4.4.0-1075.79
ubuntu/linux-azure<4.15.0-1093.103~14.04.1
4.15.0-1093.103~14.04.1
ubuntu/linux-lts-xenial<4.4.0-186.216~14.04.1
4.4.0-186.216~14.04.1
ubuntu/linux*
ubuntu/linux<4.4.0-186.216
4.4.0-186.216
ubuntu/linux-aws<4.4.0-1111.123
4.4.0-1111.123
ubuntu/linux-aws-hwe<4.15.0-1080.84~16.04.1
4.15.0-1080.84~16.04.1
ubuntu/linux-azure<4.15.0-1093.103~16.04.1
4.15.0-1093.103~16.04.1
ubuntu/linux-gcp<4.15.0-1081.92~16.04.1
4.15.0-1081.92~16.04.1
ubuntu/linux-hwe<4.15.0-115.116~16.04.1
4.15.0-115.116~16.04.1
ubuntu/linux-kvm<4.4.0-1077.84
4.4.0-1077.84
ubuntu/linux-oracle<4.15.0-1051.55~16.04.1
4.15.0-1051.55~16.04.1
ubuntu/linux-raspi2<4.4.0-1136.145
4.4.0-1136.145
ubuntu/linux-snapdragon<4.4.0-1140.148
4.4.0-1140.148
ubuntu/linux-hwe-edge*
ubuntu/linux-fips<4.4.0-1043.48
4.4.0-1043.48
ubuntu/linux-fips*
ubuntu/linux<4.15.0-115.116
4.15.0-115.116
ubuntu/linux-aws<4.15.0-1080.84
4.15.0-1080.84
ubuntu/linux-aws-5.0<5.0.0-1025.28
5.0.0-1025.28
ubuntu/linux-azure<5.0.0-1032.34
5.0.0-1032.34
ubuntu/linux-azure-4.15<4.15.0-1093.103
4.15.0-1093.103
ubuntu/linux-azure-5.3<5.3.0-1013.14~18.04.1
5.3.0-1013.14~18.04.1
ubuntu/linux-gcp<5.0.0-1031.32
5.0.0-1031.32
ubuntu/linux-gcp-4.15<4.15.0-1081.92
4.15.0-1081.92
ubuntu/linux-gcp-5.3<5.3.0-1012.13~18.04.1
5.3.0-1012.13~18.04.1
ubuntu/linux-gke-4.15<4.15.0-1067.70
4.15.0-1067.70
ubuntu/linux-gke-5.0<5.0.0-1030.31
5.0.0-1030.31
ubuntu/linux-gke-5.3<5.3.0-1012.13~18.04.1
5.3.0-1012.13~18.04.1
ubuntu/linux-hwe<5.3.0-40.32~18.04.1
5.3.0-40.32~18.04.1
ubuntu/linux-kvm<4.15.0-1072.73
4.15.0-1072.73
ubuntu/linux-oem<4.15.0-1094.104
4.15.0-1094.104
ubuntu/linux-oem-osp1<5.0.0-1039.44
5.0.0-1039.44
ubuntu/linux-oracle<4.15.0-1051.55
4.15.0-1051.55
ubuntu/linux-oracle-5.0<5.0.0-1011.16
5.0.0-1011.16
ubuntu/linux-raspi2<4.15.0-1068.72
4.15.0-1068.72
ubuntu/linux-raspi2-5.3<5.3.0-1018.20~18.04.1
5.3.0-1018.20~18.04.1
ubuntu/linux-snapdragon<4.15.0-1084.92
4.15.0-1084.92
ubuntu/linux-azure-edge*
ubuntu/linux-gcp-edge*
ubuntu/linux-hwe-edge*
ubuntu/linux-aws-fips<4.15.0-2025.25
4.15.0-2025.25
ubuntu/linux-azure-fips<4.15.0-2007.8
4.15.0-2007.8
ubuntu/linux-fips<4.15.0-1039.44
4.15.0-1039.44
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*

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 7.2.11-1Fixed in 7.2.12-1
  2. Upgrade

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

    Fixed in 4.4.0-1075.79
  3. Upgrade

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

    Fixed in 4.15.0-1093.103~14.04.1
  4. Upgrade

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

    Fixed in 4.4.0-186.216~14.04.1
  5. Upgrade

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

    Fixed in 4.4.0-186.216
  6. Upgrade

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

    Fixed in 4.4.0-1111.123
  7. Upgrade

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

    Fixed in 4.15.0-1080.84~16.04.1
  8. Upgrade

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

    Fixed in 4.15.0-1093.103~16.04.1
  9. Upgrade

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

    Fixed in 4.15.0-1081.92~16.04.1
  10. Upgrade

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

    Fixed in 4.15.0-115.116~16.04.1
  11. Upgrade

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

    Fixed in 4.4.0-1077.84
  12. Upgrade

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

    Fixed in 4.15.0-1051.55~16.04.1
  13. Upgrade

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

    Fixed in 4.4.0-1136.145
  14. Upgrade

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

    Fixed in 4.4.0-1140.148
  15. Upgrade

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

    Fixed in 4.4.0-1043.48
  16. Upgrade

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

    Fixed in 4.15.0-115.116
  17. Upgrade

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

    Fixed in 4.15.0-1080.84
  18. Upgrade

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

    Fixed in 5.0.0-1025.28
  19. Upgrade

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

    Fixed in 5.0.0-1032.34
  20. Upgrade

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

    Fixed in 4.15.0-1093.103
  21. Upgrade

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

    Fixed in 5.3.0-1013.14~18.04.1
  22. Upgrade

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

    Fixed in 5.0.0-1031.32
  23. Upgrade

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

    Fixed in 4.15.0-1081.92
  24. Upgrade

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

    Fixed in 5.3.0-1012.13~18.04.1
  25. Upgrade

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

    Fixed in 4.15.0-1067.70
  26. Upgrade

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

    Fixed in 5.0.0-1030.31
  27. Upgrade

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

    Fixed in 5.3.0-1012.13~18.04.1
  28. Upgrade

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

    Fixed in 5.3.0-40.32~18.04.1
  29. Upgrade

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

    Fixed in 4.15.0-1072.73
  30. Upgrade

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

    Fixed in 4.15.0-1094.104
  31. Upgrade

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

    Fixed in 5.0.0-1039.44
  32. Upgrade

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

    Fixed in 4.15.0-1051.55
  33. Upgrade

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

    Fixed in 5.0.0-1011.16
  34. Upgrade

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

    Fixed in 4.15.0-1068.72
  35. Upgrade

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

    Fixed in 5.3.0-1018.20~18.04.1
  36. Upgrade

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

    Fixed in 4.15.0-1084.92
  37. Upgrade

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

    Fixed in 4.15.0-2025.25
  38. Upgrade

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

    Fixed in 4.15.0-2007.8
  39. Upgrade

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

    Fixed in 4.15.0-1039.44

Event History

Dec 23, 2019
CVE Published
via MITRE·11:12 PM
Data Sourced
via MITRE·11:12 PM
Description
Dec 24, 2019
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
Data Sourced
via OSV·12:15 AM
DescriptionSeverityAffected Software
Data Sourced
via NVD·12:15 AM
RemedyDescriptionSeverityWeaknessAffected Software

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2019-19947?

CVE-2019-19947 is classified as a moderate severity vulnerability due to potential information leaks of uninitialized memory.

2

How do I fix CVE-2019-19947?

To fix CVE-2019-19947, upgrade to Linux kernel version 5.10.223-1 or later as specified in the remediation guidelines.

3

Which Linux versions are affected by CVE-2019-19947?

CVE-2019-19947 affects Linux kernel versions up to 5.4.6, including specific Debian and Ubuntu distributions.

4

What type of vulnerability is CVE-2019-19947?

CVE-2019-19947 is an information disclosure vulnerability occurring within the kvaser_usb_leaf.c driver.

5

Is CVE-2019-19947 a zero-day vulnerability?

CVE-2019-19947 was publicly disclosed before the patch was released, but it is no longer considered a zero-day as fixes are available.

Company

Resources

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