USN-2914-1 OpenSSL vulnerabilities


Severity

Low

Vendor

Ubuntu, OpenSSL

Versions Affected
  • Ubuntu 14.04 LTS
  • SSLv1
Description

Several security issues were fixed in OpenSSL.

Yuval Yarom, Daniel Genkin, and Nadia Heninger discovered that OpenSSL was vulnerable to a side-channel attack on modular exponentiation. On certain CPUs, a local attacker could possibly use this issue to recover RSA keys. This flaw is known as CacheBleed. (CVE-2016-0702)

Adam Langley discovered that OpenSSL incorrectly handled memory when parsing DSA private keys. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-0705)

Guido Vranken discovered that OpenSSL incorrectly handled hex digit calculation in the BN_hex2bn function. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-0797)

Emilia Käsper discovered that OpenSSL incorrectly handled memory when performing SRP user database lookups. A remote attacker could possibly use this issue to cause OpenSSL to consume memory, resulting in a denial of service. (CVE-2016-0798)

Guido Vranken discovered that OpenSSL incorrectly handled memory when printing very long strings. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-0799)

Affected Pivotal Products and Versions

Severity is low unless otherwise noted.

  • All versions of Cloud Foundry rootfs prior to 1.39.0 AND stemcell 3146.x versions prior to 3146.10 AND all other stemcell versions prior to 3213
  • Pivotal Redis 1.4.x versions prior to 1.4.21 AND 1.5.x versions prior to 1.5.10
  • Pivotal Ops Manager 1.5.x versions prior to 1.5.17 AND 1.6.x versions prior to 1.6.12
  • Pivotal Elastic Runtime 1.5.x versions prior to 1.5.17 AND 1.6.x versions prior to 1.6.18
  • Pivotal RabbitMQ 1.5.x versions prior to 1.5.8
  • Pivotal Push Notification Service 1.4.x versions prior to 1.4.3
  • Pivotal Ops Metrics 1.6.x versions prior to 1.6.10
  • Pivotal Single Sign On 1.0.x versions prior to 1.0.10
  • Pivotal Spring Cloud Services 1.0.x versions prior to 1.0.7
  • Pivotal MySQL 1.6.x versions prior to 1.6.9 AND 1.7.x versions prior to 1.7.6 AND edge release versions prior to 1.8.0-edge.3
Mitigation

Users of affected versions should apply the following mitigation:

  • The Cloud Foundry project recommends that Cloud Foundry deployments upgrade rootfs to version 1.39.0 or later
  • The Cloud Foundry project recommends that Cloud Foundry deployments upgrade stemcell versions 3146.x to 3146.10 or later OR all other stemcell versions to 3213 or later
  • Upgrade Pivotal Redis 1.4.x versions to 1.4.21 or later OR 1.5.x versions to 1.5.10 or later
  • Upgrade Pivotal Ops Manager 1.5.x versions to 1.5.17 or later OR 1.6.x versions to 1.6.12 or later
  • Upgrade Pivotal Elastic Runtime 1.5.x versions to 1.5.17 or later OR 1.6.x versions to 1.6.18 or later
  • Upgrade Pivotal RabbitMQ 1.5.x versions to 1.5.8 or later
  • Upgrade Pivotal Push Notification Service 1.4.x versions to 1.4.3 or later
  • Upgrade Pivotal Ops Metrics 1.6.x versions to 1.6.10 or later
  • Upgrade Pivotal Single Sign On 1.0.x versions to 1.0.10 or later
  • Upgrade Pivotal Spring Cloud Services 1.0.x versions to 1.0.7 or later
  • Upgrade Pivotal MySQL to 1.6.9 or later 1.6.x versions OR 1.7.x versions to 1.7.6 or later OR edge versions 1.8.0-edge.3 or later
Credit

Daniel Genkin, Nadia Heninger, Emilia Käsper, Adam Langley, Guido Vranken, Yuval Yarom

References