CWE
119 190
Advisory Published

USN-4157-1: Linux kernel vulnerabilities

First published: Thu Oct 17 2019(Updated: )

Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-14814, CVE-2019-14815, CVE-2019-14816) Matt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform bounds checking when handling coalesced MMIO write operations. A local attacker with write access to /dev/kvm could use this to cause a denial of service (system crash). (CVE-2019-14821) Hui Peng and Mathias Payer discovered that the 91x Wi-Fi driver in the Linux kernel did not properly handle error conditions on initialization, leading to a double-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15504) It was discovered that the Technisat DVB-S/S2 USB device driver in the Linux kernel contained a buffer overread. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2019-15505) Brad Spengler discovered that a Spectre mitigation was improperly implemented in the ptrace susbsystem of the Linux kernel. A local attacker could possibly use this to expose sensitive information. (CVE-2019-15902) It was discovered that the IPv6 RDS implementation in the Linux kernel did not properly initialize fields in a data structure returned to user space. A local attacker could use this to expose sensitive information (kernel memory). Please note that the RDS protocol is disabled via blocklist in Ubuntu by default. (CVE-2019-16714) It was discovered that an integer overflow existed in the Binder implementation of the Linux kernel, leading to a buffer overflow. A local attacker could use this to escalate privileges. (CVE-2019-2181)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.0.0-1019-aws<5.0.0-1019.21
5.0.0-1019.21
=19.04
All of
ubuntu/linux-image-5.0.0-1020-kvm<5.0.0-1020.21
5.0.0-1020.21
=19.04
All of
ubuntu/linux-image-5.0.0-1020-raspi2<5.0.0-1020.20
5.0.0-1020.20
=19.04
All of
ubuntu/linux-image-5.0.0-1021-gcp<5.0.0-1021.21
5.0.0-1021.21
=19.04
All of
ubuntu/linux-image-5.0.0-1023-azure<5.0.0-1023.24
5.0.0-1023.24
=19.04
All of
ubuntu/linux-image-5.0.0-1024-snapdragon<5.0.0-1024.25
5.0.0-1024.25
=19.04
All of
ubuntu/linux-image-5.0.0-32-generic<5.0.0-32.34
5.0.0-32.34
=19.04
All of
ubuntu/linux-image-5.0.0-32-generic-lpae<5.0.0-32.34
5.0.0-32.34
=19.04
All of
ubuntu/linux-image-5.0.0-32-lowlatency<5.0.0-32.34
5.0.0-32.34
=19.04
All of
ubuntu/linux-image-aws<5.0.0.1019.20
5.0.0.1019.20
=19.04
All of
ubuntu/linux-image-azure<5.0.0.1023.22
5.0.0.1023.22
=19.04
All of
ubuntu/linux-image-gcp<5.0.0.1021.47
5.0.0.1021.47
=19.04
All of
ubuntu/linux-image-generic<5.0.0.32.33
5.0.0.32.33
=19.04
All of
ubuntu/linux-image-generic-lpae<5.0.0.32.33
5.0.0.32.33
=19.04
All of
ubuntu/linux-image-gke<5.0.0.1021.47
5.0.0.1021.47
=19.04
All of
ubuntu/linux-image-kvm<5.0.0.1020.20
5.0.0.1020.20
=19.04
All of
ubuntu/linux-image-lowlatency<5.0.0.32.33
5.0.0.32.33
=19.04
All of
ubuntu/linux-image-raspi2<5.0.0.1020.17
5.0.0.1020.17
=19.04
All of
ubuntu/linux-image-snapdragon<5.0.0.1024.17
5.0.0.1024.17
=19.04
All of
ubuntu/linux-image-virtual<5.0.0.32.33
5.0.0.32.33
=19.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this Linux kernel vulnerability?

    The vulnerability ID for this Linux kernel vulnerability is CVE-2019-14814, CVE-2019-14815, CVE-2019-14816.

  • What is the severity of this vulnerability?

    The severity of this vulnerability is not specified.

  • Which Linux kernel versions are affected by this vulnerability?

    The Linux kernel versions affected by this vulnerability are 5.0.0-1019.21, 5.0.0-1020.21, 5.0.0-1020.20, 5.0.0-1021.21, 5.0.0-1023.24, 5.0.0-1024.25, 5.0.0-32.34, 5.0.0-32.34, 5.0.0-32.34, 5.0.0.1019.20, 5.0.0.1023.22, 5.0.0.1021.47, 5.0.0.32.33, 5.0.0.32.33, 5.0.0.1021.47, 5.0.0.1020.20, 5.0.0.32.33, 5.0.0.1020.17, 5.0.0.1024.17, 5.0.0.32.33.

  • How can a local attacker exploit this vulnerability?

    A local attacker can exploit this vulnerability by using it to cause a denial of service (system crash) or possibly execute arbitrary code.

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability at the following references: [CVE-2019-14814](https://ubuntu.com/security/CVE-2019-14814), [CVE-2019-14815](https://ubuntu.com/security/CVE-2019-14815), [CVE-2019-14816](https://ubuntu.com/security/CVE-2019-14816).

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