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USN-5116-2 Not scored

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

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)

Exploit probability Not scored
Published October 22, 2021
Required by Not available
Last source change June 3, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:18.04:LTS linux-aws-5.4

25 explicit affected versions

Ubuntu:18.04:LTS linux-azure-5.4

25 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-5.4

25 explicit affected versions

Ubuntu:18.04:LTS linux-gke-5.4

19 explicit affected versions

Ubuntu:18.04:LTS linux-gkeop-5.4

19 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.4

25 explicit affected versions

Ubuntu:18.04:LTS linux-raspi-5.4

23 explicit affected versions

Ubuntu:20.04:LTS linux-aws

37 explicit affected versions

Ubuntu:20.04:LTS linux-azure

35 explicit affected versions

Ubuntu:20.04:LTS linux-gcp

35 explicit affected versions

Ubuntu:20.04:LTS linux-gke

14 explicit affected versions

Ubuntu:20.04:LTS linux-gkeop

14 explicit affected versions

Ubuntu:20.04:LTS linux-ibm

3 explicit affected versions

Ubuntu:20.04:LTS linux-oracle

35 explicit affected versions

Ubuntu:20.04:LTS linux-raspi

27 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities USN-5116-2

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)

View original source

05 / REFERENCES

Further evidence