Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 16.04
- Canonical Ubuntu 18.04
Description
Krzesimir Nowak discovered that GLib incorrectly handled certain large buffers. A remote attacker could use this issue to cause applications linked to GLib to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-27218)
Kevin Backhouse discovered that GLib incorrectly handled certain memory allocations. A remote attacker could use this issue to cause applications linked to GLib to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-27219)
CVEs contained in this USN include: CVE-2021-27218, CVE-2021-27219.
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- cflinuxfs3
- All versions prior to 0.228.0
- Xenial Stemcells
- 456.x versions prior to 456.150
- 621.x versions prior to 621.113
- All other stemcells not listed.
- CF Deployment
- All versions prior to 16.7.0
Mitigation
Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:
- cflinuxfs3
- Upgrade all versions to 0.228.0 or greater
- Xenial Stemcells
- Upgrade 456.x versions to 456.150 or greater
- Upgrade 621.x versions to 621.113 or greater
- All other stemcells should be upgraded to the latest version available on bosh.io.
- CF Deployment
- Upgrade all versions to 16.7.0 or greater
References
History
2021-03-22: Initial vulnerability report published.
