Upstream information

CVE-2019-16782 at MITRE

Description

There's a possible information leak / session hijack vulnerability in Rack (RubyGem rack). This vulnerability is patched in versions 1.6.12 and 2.0.8. Attackers may be able to find and hijack sessions by using timing attacks targeting the session id. Session ids are usually stored and indexed in a database that uses some kind of scheme for speeding up lookups of that session id. By carefully measuring the amount of time it takes to look up a session, an attacker may be able to find a valid session id and hijack the session. The session id itself may be generated randomly, but the way the session is indexed by the backing store does not use a secure comparison.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having moderate severity.

CVSS v3 Scores
  SUSE
Base Score 5.6
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Access Vector Network
Access Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact Low
Availability Impact Low
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1159548 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise High Availability 15
  • ruby2.5-rubygem-rack >= 2.0.8-3.3.1
  • rubygem-rack >= 2.0.8-3.3.1
Patchnames:
SUSE-SLE-Product-HA-15-2020-359
SUSE Linux Enterprise High Availability 15 SP1
  • ruby2.5-rubygem-rack >= 2.0.8-3.3.1
  • rubygem-rack >= 2.0.8-3.3.1
Patchnames:
SUSE-SLE-Product-HA-15-SP1-2020-359
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP1
  • ruby2.5-rubygem-rack-doc >= 2.0.8-3.3.1
  • ruby2.5-rubygem-rack-testsuite >= 2.0.8-3.3.1
  • rubygem-rack >= 2.0.8-3.3.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-359
openSUSE Leap 15.1
  • ruby2.5-rubygem-rack >= 2.0.8-lp151.3.3.1
  • ruby2.5-rubygem-rack-doc >= 2.0.8-lp151.3.3.1
  • ruby2.5-rubygem-rack-testsuite >= 2.0.8-lp151.3.3.1
  • rubygem-rack >= 2.0.8-lp151.3.3.1
Patchnames:
openSUSE-2020-214


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise High Availability 15 GA rubygem-rack Released
SUSE Linux Enterprise High Availability 15 SP1 rubygem-rack Released
SUSE Linux Enterprise Module for Containers 12 rubygem-rack-1_4 Affected
SUSE Openstack Cloud 6 rubygem-rack Affected
SUSE Openstack Cloud 7 rubygem-rack Affected
SUSE Openstack Cloud 8 rubygem-rack Affected
SUSE Openstack Cloud 9 rubygem-rack Affected
SUSE Storage 4 rubygem-rack Affected