USN-3259-1: Bind vulnerabilities
Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 14.04
Description
It was discovered that the resolver in Bind made incorrect assumptions about ordering when processing responses containing a CNAME or DNAME. An attacker could use this cause a denial of service. (CVE-2017-3137)
Oleg Gorokhov discovered that in some situations, Bind did not properly handle DNS64 queries. An attacker could use this to cause a denial of service. (CVE-2017-3136)
Mike Lalumiere discovered that in some situations, Bind did not properly handle invalid operations requested via its control channel. An attacker with access to the control channel could cause a denial of service. (CVE-2017-3138)
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- Cloud Foundry BOSH stemcells are vulnerable, including:
- 3151.x versions prior to 3151.16
- 3263.x versions prior to 3263.24
- 3312.x versions prior to 3312.24
- 3363.x versions prior to 3363.20
- All other stemcells not listed.
- All versions of Cloud Foundry cflinuxfs2 prior to 1.114.0
Mitigation
OSS users are strongly encouraged to follow one of the mitigations below:
- The Cloud Foundry project recommends upgrading the following BOSH stemcells:
- Upgrade 3151.x versions to 3151.16 or later
- Upgrade 3263.x versions to 3263.24 or later
- Upgrade 3312.x versions to 3312.24 or later
- Upgrade 3363.x versions to 3363.20 or later
- All other stemcells should be upgraded to the latest version.
- The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 versions 1.114.0 or later.
