CVE-2019-19065: Medium severity Linux Linux kernel vulnerability

Published Nov 18, 2019
·
Updated

DISPUTED A memory leak in the sdmainit() function in drivers/infiniband/hw/hfi1/sdma.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering rhashtableinit() failures, aka CID-34b3be18a04e. NOTE: This has been disputed as not a vulnerability because "rhashtableinit() can only fail if it is passed invalid values in the second parameter's struct, but when invoked from sdmainit() that is a pointer to a static const struct, so an attacker could only trigger failure if they could corrupt kernel memory (in which case a small memory leak is not a significant problem)."

Affected Software

48 affected componentsFixes available
Linux Linux kernel<5.3.9
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.04
Canonical Ubuntu Linux=19.10
openSUSE Leap=15.1
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.12-17.2.13-1
ubuntu/linux-azure<4.15.0-1064.69~14.04.1
4.15.0-1064.69~14.04.1
ubuntu/linux-aws-hwe<4.15.0-1056.58~16.04.1
4.15.0-1056.58~16.04.1
ubuntu/linux-azure<4.15.0-1064.69
4.15.0-1064.69
ubuntu/linux-gcp<4.15.0-1050.53
4.15.0-1050.53
ubuntu/linux-hwe<4.15.0-72.81~16.04.1
4.15.0-72.81~16.04.1
ubuntu/linux-oracle<4.15.0-1030.33~16.04.1
4.15.0-1030.33~16.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux<4.15.0-72.81
4.15.0-72.81
ubuntu/linux-aws<4.15.0-1056.58
4.15.0-1056.58
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<5.3.0-1008.9~18.04.1
5.3.0-1008.9~18.04.1
ubuntu/linux-gcp<5.0.0-1028.29~18.04.1
5.0.0-1028.29~18.04.1
ubuntu/linux-gcp-5.3<5.3.0-1009.10~18.04.1
5.3.0-1009.10~18.04.1
ubuntu/linux-gke-4.15<4.15.0-1049.52
4.15.0-1049.52
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<4.15.0-1051.51
4.15.0-1051.51
ubuntu/linux-oem<4.15.0-1065.75
4.15.0-1065.75
ubuntu/linux-oem-osp1<5.0.0-1033.38
5.0.0-1033.38
ubuntu/linux-oracle<4.15.0-1030.33
4.15.0-1030.33
ubuntu/linux-oracle-5.0<5.0.0-1009.14~18.04.1
5.0.0-1009.14~18.04.1
ubuntu/linux-raspi2<4.15.0-1052.56
4.15.0-1052.56
ubuntu/linux-snapdragon<4.15.0-1069.76
4.15.0-1069.76
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-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1064.69~14.04.1
  3. Upgrade

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

    Fixed in 4.15.0-1056.58~16.04.1
  4. Upgrade

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

    Fixed in 4.15.0-1064.69
  5. Upgrade

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

    Fixed in 4.15.0-1050.53
  6. Upgrade

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

    Fixed in 4.15.0-72.81~16.04.1
  7. Upgrade

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

    Fixed in 4.15.0-1030.33~16.04.1
  8. Upgrade

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

    Fixed in 4.15.0-72.81
  9. Upgrade

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

    Fixed in 4.15.0-1056.58
  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 5.3.0-1008.9~18.04.1
  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 5.3.0-1009.10~18.04.1
  15. Upgrade

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

    Fixed in 4.15.0-1049.52
  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 4.15.0-1051.51
  19. Upgrade

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

    Fixed in 4.15.0-1065.75
  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 4.15.0-1030.33
  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 4.15.0-1052.56
  24. Upgrade

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

    Fixed in 4.15.0-1069.76
  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

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
Disputed
06:15 AM
Data Sourced
via NVD·06:15 AM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2019-19065?

The severity of CVE-2019-19065 is currently disputed and has been noted for potentially causing a denial of service due to a memory leak.

2

What versions of the Linux kernel are affected by CVE-2019-19065?

CVE-2019-19065 affects Linux kernel versions prior to 5.3.9.

3

How do I fix CVE-2019-19065?

To fix CVE-2019-19065, upgrade the Linux kernel to version 5.3.9 or later.

4

Which operating systems are affected by CVE-2019-19065?

CVE-2019-19065 affects various versions of the Linux kernel including Ubuntu 16.04, 18.04, 19.04, 19.10, and openSUSE Leap 15.1.

5

What is the impact of CVE-2019-19065 on system performance?

The impact of CVE-2019-19065 may lead to increased memory consumption and eventual denial of service due to rhashtable_init() failures.

Company

Resources

Contact

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