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

USN-4877-1 - usn.ubuntu.com/4877-1/

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	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	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	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	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	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	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	launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
USN-4877-1	16.04 (Xenial) on src	linux-image-aws-hwe	launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
USN-4877-1	16.04 (Xenial) on src	linux-image-azure	launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
USN-4877-1	16.04 (Xenial) on src	linux-image-gcp	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	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	launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
USN-4877-1	16.04 (Xenial) on src	linux-image-gke	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	launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
USN-4877-1	16.04 (Xenial) on src	linux-image-oem	launchpad.net/ubuntu/+source/linux-aws/4.15.0-1095.102
USN-4877-1	16.04 (Xenial) on src	linux-image-oracle	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	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	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	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	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	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	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	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	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	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	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	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	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-aws-lts-18.04	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-azure-lts-18.04	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-dell300x	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-gcp-lts-18.04	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-generic	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-generic-lpae	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-kvm	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-lowlatency	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-oracle-lts-18.04	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-powerpc-e500mc	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-powerpc-smp	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-powerpc64-emb	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-powerpc64-smp	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-raspi2	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-snapdragon	launchpad.net/ubuntu/+source/linux/4.15.0-137.141
USN-4877-1	18.04 (bionic) on src	linux-image-virtual	launchpad.net/ubuntu/+source/linux/4.15.0-137.141

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