CWE
119 362
Advisory Published

USN-4342-1: Linux kernel vulnerabilities

First published: Thu Apr 30 2020(Updated: )

Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondary address mode. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2020-11884) It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-16234) Tristan Madani discovered that the block I/O tracing implementation in the Linux kernel contained a race condition. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2019-19768) It was discovered that the vhost net driver in the Linux kernel contained a stack buffer overflow. A local attacker with the ability to perform ioctl() calls on /dev/vhost-net could use this to cause a denial of service (system crash). (CVE-2020-10942) It was discovered that the virtual terminal implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service (system crash) or expose sensitive information. (CVE-2020-8648) Shijie Luo discovered that the ext4 file system implementation in the Linux kernel did not properly check for a too-large journal size. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (soft lockup). (CVE-2020-8992) Jordy Zomer discovered that the floppy driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2020-9383)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.3.0-1016-kvm<5.3.0-1016.17
5.3.0-1016.17
Ubuntu Linux=19.10
All of
ubuntu/linux-image-5.3.0-1016-oracle<5.3.0-1016.18
5.3.0-1016.18
Ubuntu Linux=19.10
All of
ubuntu/linux-image-5.3.0-1017-aws<5.3.0-1017.18
5.3.0-1017.18
Ubuntu Linux=19.10
All of
ubuntu/linux-image-5.3.0-1018-gcp<5.3.0-1018.19
5.3.0-1018.19
Ubuntu Linux=19.10
All of
ubuntu/linux-image-5.3.0-1020-azure<5.3.0-1020.21
5.3.0-1020.21
Ubuntu Linux=19.10
All of
ubuntu/linux-image-5.3.0-1023-raspi2<5.3.0-1023.25
5.3.0-1023.25
Ubuntu Linux=19.10
All of
ubuntu/linux-image-5.3.0-51-generic<5.3.0-51.44
5.3.0-51.44
Ubuntu Linux=19.10
All of
ubuntu/linux-image-5.3.0-51-generic-lpae<5.3.0-51.44
5.3.0-51.44
Ubuntu Linux=19.10
All of
ubuntu/linux-image-5.3.0-51-lowlatency<5.3.0-51.44
5.3.0-51.44
Ubuntu Linux=19.10
All of
ubuntu/linux-image-5.3.0-51-snapdragon<5.3.0-51.44
5.3.0-51.44
Ubuntu Linux=19.10
All of
ubuntu/linux-image-aws<5.3.0.1017.19
5.3.0.1017.19
Ubuntu Linux=19.10
All of
ubuntu/linux-image-azure<5.3.0.1020.39
5.3.0.1020.39
Ubuntu Linux=19.10
All of
ubuntu/linux-image-gcp<5.3.0.1018.19
5.3.0.1018.19
Ubuntu Linux=19.10
All of
ubuntu/linux-image-generic<5.3.0.51.42
5.3.0.51.42
Ubuntu Linux=19.10
All of
ubuntu/linux-image-generic-lpae<5.3.0.51.42
5.3.0.51.42
Ubuntu Linux=19.10
All of
ubuntu/linux-image-gke<5.3.0.1018.19
5.3.0.1018.19
Ubuntu Linux=19.10
All of
ubuntu/linux-image-kvm<5.3.0.1016.18
5.3.0.1016.18
Ubuntu Linux=19.10
All of
ubuntu/linux-image-lowlatency<5.3.0.51.42
5.3.0.51.42
Ubuntu Linux=19.10
All of
ubuntu/linux-image-oracle<5.3.0.1016.31
5.3.0.1016.31
Ubuntu Linux=19.10
All of
ubuntu/linux-image-raspi2<5.3.0.1023.20
5.3.0.1023.20
Ubuntu Linux=19.10
All of
ubuntu/linux-image-snapdragon<5.3.0.51.42
5.3.0.51.42
Ubuntu Linux=19.10
All of
ubuntu/linux-image-virtual<5.3.0.51.42
5.3.0.51.42
Ubuntu Linux=19.10
All of
ubuntu/linux-image-5.3.0-1016-oracle<5.3.0-1016.18~18.04.1
5.3.0-1016.18~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.3.0-1018-gcp<5.3.0-1018.19~18.04.1
5.3.0-1018.19~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.3.0-1018-gke<5.3.0-1018.19~18.04.1
5.3.0-1018.19~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.3.0-1020-azure<5.3.0-1020.21~18.04.1
5.3.0-1020.21~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.3.0-1023-raspi2<5.3.0-1023.25~18.04.1
5.3.0-1023.25~18.04.1
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.3.0-51-generic<5.3.0-51.44~18.04.2
5.3.0-51.44~18.04.2
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.3.0-51-generic-lpae<5.3.0-51.44~18.04.2
5.3.0-51.44~18.04.2
Ubuntu Linux=18.04
All of
ubuntu/linux-image-5.3.0-51-lowlatency<5.3.0-51.44~18.04.2
5.3.0-51.44~18.04.2
Ubuntu Linux=18.04
All of
ubuntu/linux-image-azure<5.3.0.1020.20
5.3.0.1020.20
Ubuntu Linux=18.04
All of
ubuntu/linux-image-gcp<5.3.0.1018.17
5.3.0.1018.17
Ubuntu Linux=18.04
All of
ubuntu/linux-image-generic-hwe-18.04<5.3.0.51.104
5.3.0.51.104
Ubuntu Linux=18.04
All of
ubuntu/linux-image-generic-lpae-hwe-18.04<5.3.0.51.104
5.3.0.51.104
Ubuntu Linux=18.04
All of
ubuntu/linux-image-gke-5.3<5.3.0.1018.8
5.3.0.1018.8
Ubuntu Linux=18.04
All of
ubuntu/linux-image-lowlatency-hwe-18.04<5.3.0.51.104
5.3.0.51.104
Ubuntu Linux=18.04
All of
ubuntu/linux-image-oracle<5.3.0.1016.17
5.3.0.1016.17
Ubuntu Linux=18.04
All of
ubuntu/linux-image-raspi2-hwe-18.04<5.3.0.1023.12
5.3.0.1023.12
Ubuntu Linux=18.04
All of
ubuntu/linux-image-snapdragon-hwe-18.04<5.3.0.51.104
5.3.0.51.104
Ubuntu Linux=18.04
All of
ubuntu/linux-image-virtual-hwe-18.04<5.3.0.51.104
5.3.0.51.104
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-4342-1?

    The severity of USN-4342-1 is high due to the possibility of a denial of service or arbitrary code execution.

  • How do I fix USN-4342-1?

    To fix USN-4342-1, you should update your Linux kernel packages to the latest versions as specified in the advisory.

  • What systems are affected by USN-4342-1?

    USN-4342-1 affects Ubuntu 19.10 systems running the specified Linux kernel versions on s390x architecture.

  • Is USN-4342-1 exploitable remotely?

    No, USN-4342-1 is not remotely exploitable; it requires local access for exploitation.

  • What consequences can arise from USN-4342-1 if left unpatched?

    If left unpatched, USN-4342-1 can lead to system crashes and potential arbitrary code execution by local attackers.

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