QID 198296

Date Published: 2021-03-26

QID 198296: Ubuntu Security Notification for Linux, Linux-aws, Linux-aws-hwe, Linux-azure, Linux-azure-4.15, (USN-4877-1)

It was discovered that the Marvell WiFi-Ex device driver in the Linux kernel did not properly validate ad-hoc SSIDs.

It was discovered that the NFS implementation in the Linux kernel did not properly prevent access outside of an NFS export that is a subdirectory of a file system.

A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-36158)

An attacker could possibly use this to bypass NFS access restrictions. (CVE-2021-3178)

  • CVSS V3 rated as High - 6.7 severity.
  • CVSS V2 rated as High - 7.2 severity.
    • Solution
    Refer to Ubuntu advisory USN-4877-1 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 198296

    CVE-2020-36158 | CVE-2021-3178 |
    Software Advisories
    Advisory ID Software Component Link
    USN-4877-1 16.04 (Xenial) on src linux-image-4.15.0-1066-oracle URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-4.15.0-1094-gcp URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-4.15.0-1095-aws URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-4.15.0-1109-azure URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-4.15.0-137-generic URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-4.15.0-137-generic-lpae URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-4.15.0-137-lowlatency URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-aws-hwe URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-azure URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-gcp URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-generic-hwe-16.04 URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-generic-lpae-hwe-16.04 URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-gke URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-lowlatency-hwe-16.04 URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-oem URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-oracle URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 16.04 (Xenial) on src linux-image-virtual-hwe-16.04 URL Logo launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-1013-dell300x URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-1066-oracle URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-1080-raspi2 URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-1086-kvm URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-1094-gcp URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-1095-aws URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-1097-snapdragon URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-1109-azure URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-137-generic URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-137-generic-lpae URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-4.15.0-137-lowlatency URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-aws-lts-18.04 URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-azure-lts-18.04 URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-dell300x URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-gcp-lts-18.04 URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-generic URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-generic-lpae URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-kvm URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-lowlatency URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-oracle-lts-18.04 URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-powerpc-e500mc URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-powerpc-smp URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-powerpc64-emb URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-powerpc64-smp URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-raspi2 URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-snapdragon URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
    USN-4877-1 18.04 (bionic) on src linux-image-virtual URL Logo launchpad.net/ubuntu/+source/linux/4.15.0-137.141
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