CWE
362
Advisory Published

USN-5116-2: Linux kernel vulnerabilities

First published: Fri Oct 22 2021(Updated: )

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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-gkeop<5.4.0.1025.28
5.4.0.1025.28
=20.04
All of
ubuntu/linux-image-5.4.0-1058-aws<5.4.0-1058.61
5.4.0-1058.61
=20.04
All of
ubuntu/linux-image-5.4.0-1062-azure<5.4.0-1062.65
5.4.0-1062.65
=20.04
All of
ubuntu/linux-image-ibm<5.4.0.1006.7
5.4.0.1006.7
=20.04
All of
ubuntu/linux-image-5.4.0-1045-raspi<5.4.0-1045.49
5.4.0-1045.49
=20.04
All of
ubuntu/linux-image-5.4.0-1056-gcp<5.4.0-1056.60
5.4.0-1056.60
=20.04
All of
ubuntu/linux-image-5.4.0-1056-oracle<5.4.0-1056.60
5.4.0-1056.60
=20.04
All of
ubuntu/linux-image-5.4.0-1006-ibm<5.4.0-1006.7
5.4.0-1006.7
=20.04
All of
ubuntu/linux-image-ibm-lts-20.04<5.4.0.1006.7
5.4.0.1006.7
=20.04
All of
ubuntu/linux-image-azure-lts-20.04<5.4.0.1062.60
5.4.0.1062.60
=20.04
All of
ubuntu/linux-image-gkeop-5.4<5.4.0.1025.28
5.4.0.1025.28
=20.04
All of
ubuntu/linux-image-gke<5.4.0.1054.64
5.4.0.1054.64
=20.04
All of
ubuntu/linux-image-aws-lts-20.04<5.4.0.1058.61
5.4.0.1058.61
=20.04
All of
ubuntu/linux-image-raspi2<5.4.0.1045.80
5.4.0.1045.80
=20.04
All of
ubuntu/linux-image-5.4.0-1025-gkeop<5.4.0-1025.26
5.4.0-1025.26
=20.04
All of
ubuntu/linux-image-gcp-lts-20.04<5.4.0.1056.66
5.4.0.1056.66
=20.04
All of
ubuntu/linux-image-oracle-lts-20.04<5.4.0.1056.56
5.4.0.1056.56
=20.04
All of
ubuntu/linux-image-5.4.0-1054-gke<5.4.0-1054.57
5.4.0-1054.57
=20.04
All of
ubuntu/linux-image-raspi<5.4.0.1045.80
5.4.0.1045.80
=20.04
All of
ubuntu/linux-image-gke-5.4<5.4.0.1054.64
5.4.0.1054.64
=20.04
All of
ubuntu/linux-image-5.4.0-1058-aws<5.4.0-1058.61~18.04.3
5.4.0-1058.61~18.04.3
=18.04
All of
ubuntu/linux-image-aws<5.4.0.1058.41
5.4.0.1058.41
=18.04
All of
ubuntu/linux-image-raspi-hwe-18.04<5.4.0.1045.48
5.4.0.1045.48
=18.04
All of
ubuntu/linux-image-5.4.0-1062-azure<5.4.0-1062.65~18.04.1
5.4.0-1062.65~18.04.1
=18.04
All of
ubuntu/linux-image-5.4.0-1056-gcp<5.4.0-1056.60~18.04.1
5.4.0-1056.60~18.04.1
=18.04
All of
ubuntu/linux-image-gkeop-5.4<5.4.0.1025.26~18.04.26
5.4.0.1025.26~18.04.26
=18.04
All of
ubuntu/linux-image-azure<5.4.0.1062.42
5.4.0.1062.42
=18.04
All of
ubuntu/linux-image-5.4.0-1025-gkeop<5.4.0-1025.26~18.04.1
5.4.0-1025.26~18.04.1
=18.04
All of
ubuntu/linux-image-gcp<5.4.0.1056.42
5.4.0.1056.42
=18.04
All of
ubuntu/linux-image-oracle<5.4.0.1056.60~18.04.36
5.4.0.1056.60~18.04.36
=18.04
All of
ubuntu/linux-image-5.4.0-1054-gke<5.4.0-1054.57~18.04.1
5.4.0-1054.57~18.04.1
=18.04
All of
ubuntu/linux-image-5.4.0-1056-oracle<5.4.0-1056.60~18.04.1
5.4.0-1056.60~18.04.1
=18.04
All of
ubuntu/linux-image-gke-5.4<5.4.0.1054.57~18.04.19
5.4.0.1054.57~18.04.19
=18.04
All of
ubuntu/linux-image-5.4.0-1045-raspi<5.4.0-1045.49~18.04.1
5.4.0-1045.49~18.04.1
=18.04

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203