Severity
High
Vendor
Ubuntu
Versions Affected
- Ubuntu 14.04
Description
Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.
The Cloud Foundry project released a BOSH stemcell version 3146.5 that has the patched version of the Linux kernel.
Affected Products and Versions
Severity is high unless otherwise noted.
- All versions of Cloud Foundry BOSH stemcells prior to 3146.5 are vulnerable.
Mitigation
Users of affected versions should apply the following mitigation:
- The Cloud Foundry project recommends that Cloud Foundry deployments run with BOSH stemcells 3146.5.
Credit
Yevgeny Pats
