Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 18.04
Description
It was discovered that Nettle incorrectly handled RSA decryption. A remote attacker could possibly use this issue to cause Nettle to crash, resulting in a denial of service. (CVE-2021-3580)
It was discovered that Nettle incorrectly handled certain padding oracles. A remote attacker could possibly use this issue to perform a variant of the Bleichenbacher attack. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-16869)
CVEs contained in this USN include: CVE-2018-16869, CVE-2021-3580.
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- Bionic Stemcells
- 1.x versions prior to 1.13
- All other stemcells not listed.
- cflinuxfs3
- All versions prior to 0.244.0
- CF Deployment
- All versions prior to 16.16.0
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 1.13 or greater
- All other stemcells should be upgraded to the latest version available on bosh.io.
- cflinuxfs3
- Upgrade all versions to 0.244.0 or greater
- CF Deployment
- Upgrade all versions to 16.16.0 or greater
References
History
2021-07-08: Initial vulnerability report published.
