CWE
119
Advisory Published

USN-4209-1: Linux kernel vulnerabilities

First published: Mon Dec 02 2019(Updated: )

Jann Horn discovered that the OverlayFS and ShiftFS Drivers in the Linux kernel did not properly handle reference counting during memory mapping operations when used in conjunction with AUFS. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-15794) It was discovered that a buffer overflow existed in the 802.11 Wi-Fi configuration interface for the Linux kernel when handling beacon settings. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-16746) It was discovered that there was a memory leak in the Advanced Buffer Management functionality of the Netronome NFP4000/NFP6000 NIC Driver in the Linux kernel during certain error scenarios. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19076)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.0.0-1008-oracle<5.0.0-1008.13
5.0.0-1008.13
Ubuntu Linux=19.04
All of
ubuntu/linux-image-5.0.0-1022-aws<5.0.0-1022.25
5.0.0-1022.25
Ubuntu Linux=19.04
All of
ubuntu/linux-image-5.0.0-1023-kvm<5.0.0-1023.25
5.0.0-1023.25
Ubuntu Linux=19.04
All of
ubuntu/linux-image-5.0.0-1023-raspi2<5.0.0-1023.24
5.0.0-1023.24
Ubuntu Linux=19.04
All of
ubuntu/linux-image-5.0.0-1026-gcp<5.0.0-1026.27
5.0.0-1026.27
Ubuntu Linux=19.04
All of
ubuntu/linux-image-5.0.0-37-generic<5.0.0-37.40
5.0.0-37.40
Ubuntu Linux=19.04
All of
ubuntu/linux-image-5.0.0-37-generic-lpae<5.0.0-37.40
5.0.0-37.40
Ubuntu Linux=19.04
All of
ubuntu/linux-image-5.0.0-37-lowlatency<5.0.0-37.40
5.0.0-37.40
Ubuntu Linux=19.04
All of
ubuntu/linux-image-aws<5.0.0.1022.24
5.0.0.1022.24
Ubuntu Linux=19.04
All of
ubuntu/linux-image-gcp<5.0.0.1026.51
5.0.0.1026.51
Ubuntu Linux=19.04
All of
ubuntu/linux-image-generic<5.0.0.37.39
5.0.0.37.39
Ubuntu Linux=19.04
All of
ubuntu/linux-image-generic-lpae<5.0.0.37.39
5.0.0.37.39
Ubuntu Linux=19.04
All of
ubuntu/linux-image-gke<5.0.0.1026.51
5.0.0.1026.51
Ubuntu Linux=19.04
All of
ubuntu/linux-image-kvm<5.0.0.1023.24
5.0.0.1023.24
Ubuntu Linux=19.04
All of
ubuntu/linux-image-lowlatency<5.0.0.37.39
5.0.0.37.39
Ubuntu Linux=19.04
All of
ubuntu/linux-image-oracle<5.0.0.1008.34
5.0.0.1008.34
Ubuntu Linux=19.04
All of
ubuntu/linux-image-raspi2<5.0.0.1023.21
5.0.0.1023.21
Ubuntu Linux=19.04
All of
ubuntu/linux-image-virtual<5.0.0.37.39
5.0.0.37.39
Ubuntu Linux=19.04
All of
ubuntu/linux-image-5.0.0-1008-oracle<5.0.0-1008.13~18.04.1
5.0.0-1008.13~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.0.0-1022-aws<5.0.0-1022.25~18.04.1
5.0.0-1022.25~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.0.0-1026-gcp<5.0.0-1026.27~18.04.1
5.0.0-1026.27~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.0.0-1026-gke<5.0.0-1026.27~18.04.2
5.0.0-1026.27~18.04.2
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.0.0-1030-oem-osp1<5.0.0-1030.34
5.0.0-1030.34
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.0.0-37-generic<5.0.0-37.40~18.04.1
5.0.0-37.40~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.0.0-37-generic-lpae<5.0.0-37.40~18.04.1
5.0.0-37.40~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.0.0-37-lowlatency<5.0.0-37.40~18.04.1
5.0.0-37.40~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-aws-edge<5.0.0.1022.36
5.0.0.1022.36
Ubuntu Linux=18.04
All of
ubuntu/linux-image-gcp<5.0.0.1026.30
5.0.0.1026.30
Ubuntu Linux=18.04
All of
ubuntu/linux-image-generic-hwe-18.04<5.0.0.37.95
5.0.0.37.95
Ubuntu Linux=18.04
All of
ubuntu/linux-image-generic-lpae-hwe-18.04<5.0.0.37.95
5.0.0.37.95
Ubuntu Linux=18.04
All of
ubuntu/linux-image-gke-5.0<5.0.0.1026.15
5.0.0.1026.15
Ubuntu Linux=18.04
All of
ubuntu/linux-image-lowlatency-hwe-18.04<5.0.0.37.95
5.0.0.37.95
Ubuntu Linux=18.04
All of
ubuntu/linux-image-oem-osp1<5.0.0.1030.34
5.0.0.1030.34
Ubuntu Linux=18.04
All of
ubuntu/linux-image-oracle-edge<5.0.0.1008.7
5.0.0.1008.7
Ubuntu Linux=18.04
All of
ubuntu/linux-image-snapdragon-hwe-18.04<5.0.0.37.95
5.0.0.37.95
Ubuntu Linux=18.04
All of
ubuntu/linux-image-virtual-hwe-18.04<5.0.0.37.95
5.0.0.37.95
Ubuntu Linux=18.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-4209-1?

    USN-4209-1 is classified as a medium severity vulnerability that could lead to denial of service.

  • How do I fix USN-4209-1?

    To fix USN-4209-1, ensure you upgrade to the patched versions of the affected Linux packages listed in the advisory.

  • Which systems are affected by USN-4209-1?

    USN-4209-1 affects Ubuntu version 19.04 running specific Linux kernel images.

  • What vulnerabilities are addressed in USN-4209-1?

    USN-4209-1 addresses vulnerabilities related to improper reference counting in the OverlayFS and ShiftFS drivers in the Linux kernel.

  • Who discovered the vulnerabilities in USN-4209-1?

    The vulnerabilities addressed in USN-4209-1 were discovered by Jann Horn.

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