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OpenAdvisories
Unscored USN-4342-1 7 CVEs

linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2, linux-raspi2-5.3 vulnerabilities

Published Apr 30, 2020 · Updated Jun 3, 2026

Summary

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)

Fixed packages 6

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS linux-azure-5.3 5.3.0-1020.21~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-gcp-5.3 5.3.0-1018.19~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-gke-5.3 5.3.0-1018.19~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-hwe 5.3.0-51.44~18.04.2
Ubuntu · 18.04 LTS 18.04:LTS linux-oracle-5.3 5.3.0-1016.18~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-raspi2-5.3 5.3.0-1023.25~18.04.1

Vulnerabilities 7

References

  • report
    https://ubuntu.com/security/CVE-2019-16234
  • report
    https://ubuntu.com/security/CVE-2019-19768
  • report
    https://ubuntu.com/security/CVE-2020-8648
  • report
    https://ubuntu.com/security/CVE-2020-8992
  • report
    https://ubuntu.com/security/CVE-2020-9383
  • report
    https://ubuntu.com/security/CVE-2020-10942
  • report
    https://ubuntu.com/security/CVE-2020-11884