USN-3692-1: OpenSSL vulnerabilities
Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 14.04
Description
Keegan Ryan discovered that OpenSSL incorrectly handled ECDSA key generation. An attacker could possibly use this issue to perform a cache-timing attack and recover private ECDSA keys. (CVE-2018-0495)
Guido Vranken discovered that OpenSSL incorrectly handled very large prime values during a key agreement. A remote attacker could possibly use this issue to consume resources, leading to a denial of service. (CVE-2018-0732)
Alejandro Cabrera Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia discovered that OpenSSL incorrectly handled RSA key generation. An attacker could possibly use this issue to perform a cache-timing attack and recover private RSA keys. (CVE-2018-0737)
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- Cloud Foundry BOSH stemcells are vulnerable, including:
- 3586.x versions prior to 3586.25
- 3541.x versions prior to 3541.35
- 3468.x versions prior to 3468.53
- 3445.x versions prior to 3445.53
- 3421.x versions prior to 3421.68
- 3363.x versions prior to 3363.67
- All other stemcells not listed.
- All versions of Cloud Foundry cflinuxfs2 prior to 1.221.0
Mitigation
OSS users are strongly encouraged to follow one of the mitigations below:
- The Cloud Foundry project recommends upgrading the following BOSH stemcells:
- Upgrade 3586.x versions to 3586.25
- Upgrade 3541.x versions to 3541.35
- Upgrade 3468.x versions to 3468.53
- Upgrade 3445.x versions to 3445.53
- Upgrade 3421.x versions to 3421.68
- Upgrade 3363.x versions to 3363.67
- All other stemcells should be upgraded to the latest version available on bosh.io.
- The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 version 1.221.0 or later.
