Advisory Published

USN-4412-1: Linux kernel vulnerabilities

First published: Mon Jul 06 2020(Updated: )

Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of service (system crash). (CVE-2020-10711) It was discovered that the SCSI generic (sg) driver in the Linux kernel did not properly handle certain error conditions correctly. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2020-12770) It was discovered that the USB Gadget device driver in the Linux kernel did not validate arguments passed from configfs in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2020-13143) Dmitry Vyukov discovered that the SELinux netlink security hook in the Linux kernel did not validate messages in some situations. A privileged attacker could use this to bypass SELinux netlink restrictions. (CVE-2020-10751) It was discovered that the KVM implementation in the Linux kernel did not properly deallocate memory on initialization for some processors. A local attacker could possibly use this to cause a denial of service. (CVE-2020-12768)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.3.0-1024-kvm<5.3.0-1024.26
5.3.0-1024.26
=19.10
All of
ubuntu/linux-image-5.3.0-1028-oracle<5.3.0-1028.30
5.3.0-1028.30
=19.10
All of
ubuntu/linux-image-5.3.0-1030-aws<5.3.0-1030.32
5.3.0-1030.32
=19.10
All of
ubuntu/linux-image-5.3.0-1030-gcp<5.3.0-1030.32
5.3.0-1030.32
=19.10
All of
ubuntu/linux-image-5.3.0-1032-azure<5.3.0-1032.33
5.3.0-1032.33
=19.10
All of
ubuntu/linux-image-5.3.0-62-generic<5.3.0-62.56
5.3.0-62.56
=19.10
All of
ubuntu/linux-image-5.3.0-62-generic-lpae<5.3.0-62.56
5.3.0-62.56
=19.10
All of
ubuntu/linux-image-5.3.0-62-lowlatency<5.3.0-62.56
5.3.0-62.56
=19.10
All of
ubuntu/linux-image-5.3.0-62-snapdragon<5.3.0-62.56
5.3.0-62.56
=19.10
All of
ubuntu/linux-image-aws<5.3.0.1030.40
5.3.0.1030.40
=19.10
All of
ubuntu/linux-image-azure<5.3.0.1032.50
5.3.0.1032.50
=19.10
All of
ubuntu/linux-image-gcp<5.3.0.1030.40
5.3.0.1030.40
=19.10
All of
ubuntu/linux-image-generic<5.3.0.62.52
5.3.0.62.52
=19.10
All of
ubuntu/linux-image-generic-lpae<5.3.0.62.52
5.3.0.62.52
=19.10
All of
ubuntu/linux-image-gke<5.3.0.1030.40
5.3.0.1030.40
=19.10
All of
ubuntu/linux-image-kvm<5.3.0.1024.22
5.3.0.1024.22
=19.10
All of
ubuntu/linux-image-lowlatency<5.3.0.62.52
5.3.0.62.52
=19.10
All of
ubuntu/linux-image-oracle<5.3.0.1028.43
5.3.0.1028.43
=19.10
All of
ubuntu/linux-image-snapdragon<5.3.0.62.52
5.3.0.62.52
=19.10
All of
ubuntu/linux-image-virtual<5.3.0.62.52
5.3.0.62.52
=19.10
All of
ubuntu/linux-image-5.3.0-1028-oracle<5.3.0-1028.30~18.04.1
5.3.0-1028.30~18.04.1
=18.04
All of
ubuntu/linux-image-5.3.0-1028-raspi2<5.3.0-1028.30~18.04.2
5.3.0-1028.30~18.04.2
=18.04
All of
ubuntu/linux-image-5.3.0-1030-aws<5.3.0-1030.32~18.04.1
5.3.0-1030.32~18.04.1
=18.04
All of
ubuntu/linux-image-5.3.0-1030-gcp<5.3.0-1030.32~18.04.1
5.3.0-1030.32~18.04.1
=18.04
All of
ubuntu/linux-image-5.3.0-1030-gke<5.3.0-1030.32~18.04.1
5.3.0-1030.32~18.04.1
=18.04
All of
ubuntu/linux-image-5.3.0-1032-azure<5.3.0-1032.33~18.04.1
5.3.0-1032.33~18.04.1
=18.04
All of
ubuntu/linux-image-5.3.0-62-generic<5.3.0-62.56~18.04.1
5.3.0-62.56~18.04.1
=18.04
All of
ubuntu/linux-image-5.3.0-62-generic-lpae<5.3.0-62.56~18.04.1
5.3.0-62.56~18.04.1
=18.04
All of
ubuntu/linux-image-5.3.0-62-lowlatency<5.3.0-62.56~18.04.1
5.3.0-62.56~18.04.1
=18.04
All of
ubuntu/linux-image-aws<5.3.0.1030.28
5.3.0.1030.28
=18.04
All of
ubuntu/linux-image-azure<5.3.0.1032.28
5.3.0.1032.28
=18.04
All of
ubuntu/linux-image-gcp<5.3.0.1030.24
5.3.0.1030.24
=18.04
All of
ubuntu/linux-image-generic-hwe-18.04<5.3.0.62.115
5.3.0.62.115
=18.04
All of
ubuntu/linux-image-generic-lpae-hwe-18.04<5.3.0.62.115
5.3.0.62.115
=18.04
All of
ubuntu/linux-image-gke-5.3<5.3.0.1030.15
5.3.0.1030.15
=18.04
All of
ubuntu/linux-image-gkeop-5.3<5.3.0.62.115
5.3.0.62.115
=18.04
All of
ubuntu/linux-image-lowlatency-hwe-18.04<5.3.0.62.115
5.3.0.62.115
=18.04
All of
ubuntu/linux-image-oracle<5.3.0.1028.25
5.3.0.1028.25
=18.04
All of
ubuntu/linux-image-raspi2-hwe-18.04<5.3.0.1028.17
5.3.0.1028.17
=18.04
All of
ubuntu/linux-image-snapdragon-hwe-18.04<5.3.0.62.115
5.3.0.62.115
=18.04
All of
ubuntu/linux-image-virtual-hwe-18.04<5.3.0.62.115
5.3.0.62.115
=18.04

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