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Unscored USN-5116-2 6 CVEs

linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-ibm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

Published Oct 22, 2021 · Updated Sep 9, 2026

Summary

It was discovered that a race condition existed in the Atheros Ath9k WiFi
driver in the Linux kernel. An attacker could possibly use this to expose
sensitive information (WiFi network traffic). (CVE-2020-3702)

Alois Wohlschlager discovered that the overlay file system in the Linux
kernel did not restrict private clones in some situations. An attacker
could use this to expose sensitive information. (CVE-2021-3732)

It was discovered that the KVM hypervisor implementation in the Linux
kernel did not properly compute the access permissions for shadow pages in
some situations. A local attacker could use this to cause a denial of
service. (CVE-2021-38198)

It was discovered that the Xilinx 10/100 Ethernet Lite device driver in the
Linux kernel could report pointer addresses in some situations. An attacker
could use this information to ease the exploitation of another
vulnerability. (CVE-2021-38205)

It was discovered that the ext4 file system in the Linux kernel contained a
race condition when writing xattrs to an inode. A local attacker could use
this to cause a denial of service or possibly gain administrative
privileges. (CVE-2021-40490)

It was discovered that the 6pack network protocol driver in the Linux
kernel did not properly perform validation checks. A privileged attacker
could use this to cause a denial of service (system crash) or execute
arbitrary code. (CVE-2021-42008)

Fixed packages 15

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS linux-aws-5.4 5.4.0-1058.61~18.04.3
Ubuntu · 18.04 LTS 18.04:LTS linux-azure-5.4 5.4.0-1062.65~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-gcp-5.4 5.4.0-1056.60~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-gke-5.4 5.4.0-1054.57~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-gkeop-5.4 5.4.0-1025.26~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-oracle-5.4 5.4.0-1056.60~18.04.1
Ubuntu · 18.04 LTS 18.04:LTS linux-raspi-5.4 5.4.0-1045.49~18.04.1
Ubuntu · 20.04 LTS 20.04:LTS linux-aws 5.4.0-1058.61
Ubuntu · 20.04 LTS 20.04:LTS linux-azure 5.4.0-1062.65
Ubuntu · 20.04 LTS 20.04:LTS linux-gcp 5.4.0-1056.60
Ubuntu · 20.04 LTS 20.04:LTS linux-gke 5.4.0-1054.57
Ubuntu · 20.04 LTS 20.04:LTS linux-gkeop 5.4.0-1025.26
Ubuntu · 20.04 LTS 20.04:LTS linux-ibm 5.4.0-1006.7
Ubuntu · 20.04 LTS 20.04:LTS linux-oracle 5.4.0-1056.60
Ubuntu · 20.04 LTS 20.04:LTS linux-raspi 5.4.0-1045.49

Vulnerabilities 6

References

  • report
    https://ubuntu.com/security/CVE-2020-3702
  • report
    https://ubuntu.com/security/CVE-2021-3732
  • report
    https://ubuntu.com/security/CVE-2021-38198
  • report
    https://ubuntu.com/security/CVE-2021-38205
  • report
    https://ubuntu.com/security/CVE-2021-40490
  • report
    https://ubuntu.com/security/CVE-2021-42008