Severity
High
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 18.04
Description
It was discovered that systemd incorrectly handled certain mount paths. A local attacker could possibly use this issue to cause systemd to crash, resulting in a denial of service. (CVE-2021-33910)
Mitchell Frank discovered that systemd incorrectly handled DHCP FORCERENEW packets. A remote attacker could possibly use this issue to reconfigure servers. (CVE-2020-13529)
CVEs contained in this USN include: CVE-2020-13529, CVE-2021-33910.
Affected Cloud Foundry Products and Versions
Severity is high unless otherwise noted.
- Bionic Stemcells
- 1.x versions prior to 1.20
- All other stemcells not listed.
- cflinuxfs3
- All versions prior to 0.250.0
- CF Deployment
- All versions prior to 16.22.0
Mitigation
Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:
- Bionic Stemcells
- Upgrade 1.x versions to 1.20 or greater
- All other stemcells should be upgraded to the latest version available on bosh.io.
- cflinuxfs3
- Upgrade all versions to 0.250.0 or greater
- CF Deployment
- Upgrade all versions to 16.22.0 or greater
References
History
2021-09-03: Initial vulnerability report published.
