Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 16.04
Description
It was discovered that the Marvell WiFi-Ex device driver in the Linux kernel did not properly validate ad-hoc SSIDs. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-36158)
吴异 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. An attacker could possibly use this to bypass NFS access restrictions. (CVE-2021-3178)
CVEs contained in this USN include: CVE-2021-3178, CVE-2020-36158.
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- Xenial Stemcells
- 456.x versions prior to 456.152
- 621.x versions prior to 621.115
- All other stemcells not listed.
Mitigation
Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:
- Xenial Stemcells
- Upgrade 456.x versions to 456.152 or greater
- Upgrade 621.x versions to 621.115 or greater
- All other stemcells should be upgraded to the latest version available on bosh.io.
References
History
2021-04-14: Initial vulnerability report published.
