CVE-2019-19066: Medium severity Linux Linux kernel vulnerability

Published Nov 18, 2019
·
Updated

A memory leak in the bfadimgetstats() function in drivers/scsi/bfa/bfadattr.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering bfaportgetstats() failures, aka CID-0e62395da2bd.

Affected Software

65 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=19.10
Debian Debian Linux=8.0
Fedoraproject Fedora=30
Fedoraproject Fedora=31
openSUSE Leap=15.1
redhat Enterprise Linux=7.0
redhat Enterprise Linux=8.0
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.12-17.2.13-1
ubuntu/linux-aws<4.4.0-1062.66
4.4.0-1062.66
ubuntu/linux-azure<4.15.0-1074.79~14.04.1
4.15.0-1074.79~14.04.1
ubuntu/linux-lts-xenial<4.4.0-174.204~14.04.1
4.4.0-174.204~14.04.1
ubuntu/linux*
ubuntu/linux<4.4.0-174.204
4.4.0-174.204
ubuntu/linux-aws<4.4.0-1102.113
4.4.0-1102.113
ubuntu/linux-aws-hwe<4.15.0-1063.67~16.04.1
4.15.0-1063.67~16.04.1
ubuntu/linux-azure<4.15.0-1075.80
4.15.0-1075.80
ubuntu/linux-gcp<4.15.0-1058.62
4.15.0-1058.62
ubuntu/linux-hwe<4.15.0-91.92~16.04.1
4.15.0-91.92~16.04.1
ubuntu/linux-kvm<4.4.0-1066.73
4.4.0-1066.73
ubuntu/linux-oracle<4.15.0-1035.38~16.04.1
4.15.0-1035.38~16.04.1
ubuntu/linux-raspi2<4.4.0-1129.138
4.4.0-1129.138
ubuntu/linux-snapdragon<4.4.0-1133.141
4.4.0-1133.141
ubuntu/linux-hwe-edge*
ubuntu/linux-fips<4.4.0-1029.34
4.4.0-1029.34
ubuntu/linux-fips*
ubuntu/linux<4.15.0-91.92
4.15.0-91.92
ubuntu/linux-aws<4.15.0-1063.67
4.15.0-1063.67
ubuntu/linux-aws-5.0<5.0.0-1027.30
5.0.0-1027.30
ubuntu/linux-azure<5.0.0-1035.37
5.0.0-1035.37
ubuntu/linux-azure-5.3<5.3.0-1016.17~18.04.1
5.3.0-1016.17~18.04.1
ubuntu/linux-gcp<5.0.0-1033.34
5.0.0-1033.34
ubuntu/linux-gcp-5.3<5.3.0-1014.15~18.04.1
5.3.0-1014.15~18.04.1
ubuntu/linux-gke-4.15<4.15.0-1055.58
4.15.0-1055.58
ubuntu/linux-gke-5.0<5.0.0-1032.33
5.0.0-1032.33
ubuntu/linux-gke-5.3<5.3.0-1014.15~18.04.1
5.3.0-1014.15~18.04.1
ubuntu/linux-hwe<5.3.0-42.34~18.04.1
5.3.0-42.34~18.04.1
ubuntu/linux-kvm<4.15.0-1056.57
4.15.0-1056.57
ubuntu/linux-oem<4.15.0-1076.86
4.15.0-1076.86
ubuntu/linux-oem-osp1<5.0.0-1043.48
5.0.0-1043.48
ubuntu/linux-oracle<4.15.0-1035.39
4.15.0-1035.39
ubuntu/linux-oracle-5.0<5.0.0-1013.18
5.0.0-1013.18
ubuntu/linux-raspi2<4.15.0-1057.61
4.15.0-1057.61
ubuntu/linux-raspi2-5.3<5.3.0-1019.21~18.04.1
5.3.0-1019.21~18.04.1
ubuntu/linux-snapdragon<4.15.0-1074.81
4.15.0-1074.81
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 7.2.12-1Fixed in 7.2.13-1
  2. Upgrade

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

    Fixed in 4.4.0-1062.66
  3. Upgrade

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

    Fixed in 4.15.0-1074.79~14.04.1
  4. Upgrade

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

    Fixed in 4.4.0-174.204~14.04.1
  5. Upgrade

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

    Fixed in 4.4.0-174.204
  6. Upgrade

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

    Fixed in 4.4.0-1102.113
  7. Upgrade

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

    Fixed in 4.15.0-1063.67~16.04.1
  8. Upgrade

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

    Fixed in 4.15.0-1075.80
  9. Upgrade

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

    Fixed in 4.15.0-1058.62
  10. Upgrade

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

    Fixed in 4.15.0-91.92~16.04.1
  11. Upgrade

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

    Fixed in 4.4.0-1066.73
  12. Upgrade

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

    Fixed in 4.15.0-1035.38~16.04.1
  13. Upgrade

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

    Fixed in 4.4.0-1129.138
  14. Upgrade

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

    Fixed in 4.4.0-1133.141
  15. Upgrade

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

    Fixed in 4.4.0-1029.34
  16. Upgrade

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

    Fixed in 4.15.0-91.92
  17. Upgrade

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

    Fixed in 4.15.0-1063.67
  18. Upgrade

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

    Fixed in 5.0.0-1027.30
  19. Upgrade

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

    Fixed in 5.0.0-1035.37
  20. Upgrade

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

    Fixed in 5.3.0-1016.17~18.04.1
  21. Upgrade

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

    Fixed in 5.0.0-1033.34
  22. Upgrade

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

    Fixed in 5.3.0-1014.15~18.04.1
  23. Upgrade

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

    Fixed in 4.15.0-1055.58
  24. Upgrade

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

    Fixed in 5.0.0-1032.33
  25. Upgrade

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

    Fixed in 5.3.0-1014.15~18.04.1
  26. Upgrade

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

    Fixed in 5.3.0-42.34~18.04.1
  27. Upgrade

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

    Fixed in 4.15.0-1056.57
  28. Upgrade

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

    Fixed in 4.15.0-1076.86
  29. Upgrade

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

    Fixed in 5.0.0-1043.48
  30. Upgrade

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

    Fixed in 4.15.0-1035.39
  31. Upgrade

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

    Fixed in 5.0.0-1013.18
  32. Upgrade

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

    Fixed in 4.15.0-1057.61
  33. Upgrade

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

    Fixed in 5.3.0-1019.21~18.04.1
  34. Upgrade

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

    Fixed in 4.15.0-1074.81
  35. Upgrade

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

    Fixed in 4.15.0-2018.18
  36. Upgrade

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

    Fixed in 4.15.0-2006.7

Event History

Nov 18, 2019
CVE Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
CVE Published
via MITRE·05:24 AM
Data Sourced
via MITRE·05:24 AM
Description
Data Sourced
via OSV·06:15 AM
DescriptionSeverityAffected Software
Data Sourced
via NVD·06:15 AM
RemedyDescriptionSeverityWeaknessAffected Software

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2019-19066?

CVE-2019-19066 is classified as a denial of service vulnerability due to memory leak issues.

2

How do I fix CVE-2019-19066?

To mitigate CVE-2019-19066, upgrade to Linux kernel versions 5.10.223-1, 5.10.226-1, or later.

3

Which systems are affected by CVE-2019-19066?

CVE-2019-19066 affects various systems running Linux kernel up to version 5.3.11, including specific versions of Ubuntu, Debian, Fedora, and Red Hat.

4

What causes the memory leak in CVE-2019-19066?

The memory leak in CVE-2019-19066 is caused by failures in the bfad_im_get_stats() function during bfa_port_get_stats() executions.

5

Can CVE-2019-19066 be exploited remotely?

Yes, CVE-2019-19066 can potentially be exploited remotely, leading to denial of service through excessive memory consumption.

Company

Resources

Contact

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