Upstream information

CVE-2020-10933 at MITRE

Description

An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit the requested size, but no data is copied. Thus, the buffer string provides the previous value of the heap. This may expose possibly sensitive data from the interpreter.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 5.3 5.3
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Access Vector Network Network
Access Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact Low Low
Integrity Impact None None
Availability Impact None None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1168938 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Image SLES15-EC2-CHOST-HVM-BYOS
Image SLES15-SP1-CHOST-BYOS-Azure
Image SLES15-SP1-CHOST-BYOS-EC2
Image SLES15-SP1-CHOST-BYOS-GCE
Image SLES15-SP2-CHOST-BYOS-Aliyun
Image SLES15-SP2-CHOST-BYOS-Azure
Image SLES15-SP2-CHOST-BYOS-EC2
Image SLES15-SP2-CHOST-BYOS-GCE
Image SLES15-SP2-CHOST-BYOS-OpenStack
  • libruby2_5-2_5 >= 2.5.8-4.11.1
  • ruby2.5 >= 2.5.8-4.11.1
  • ruby2.5-stdlib >= 2.5.8-4.11.1
SUSE Linux Enterprise Module for Basesystem 15 SP1
  • libruby2_5-2_5 >= 2.5.8-4.11.1
  • ruby2.5 >= 2.5.8-4.11.1
  • ruby2.5-devel >= 2.5.8-4.11.1
  • ruby2.5-devel-extra >= 2.5.8-4.11.1
  • ruby2.5-stdlib >= 2.5.8-4.11.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP1-2020-995
SUSE Linux Enterprise Module for Basesystem 15 SP2
  • libruby2_5-2_5 >= 2.5.8-4.11.1
  • ruby2.5 >= 2.5.8-4.11.1
  • ruby2.5-devel >= 2.5.8-4.11.1
  • ruby2.5-devel-extra >= 2.5.8-4.11.1
  • ruby2.5-stdlib >= 2.5.8-4.11.1
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP1
  • ruby2.5 >= 2.5.8-4.11.1
  • ruby2.5-doc >= 2.5.8-4.11.1
  • ruby2.5-doc-ri >= 2.5.8-4.11.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-995
openSUSE Leap 15.1
  • libruby2_5-2_5 >= 2.5.8-lp151.4.9.1
  • libruby2_5-2_5-debuginfo >= 2.5.8-lp151.4.9.1
  • ruby2.5 >= 2.5.8-lp151.4.9.1
  • ruby2.5-debuginfo >= 2.5.8-lp151.4.9.1
  • ruby2.5-debugsource >= 2.5.8-lp151.4.9.1
  • ruby2.5-devel >= 2.5.8-lp151.4.9.1
  • ruby2.5-devel-extra >= 2.5.8-lp151.4.9.1
  • ruby2.5-doc >= 2.5.8-lp151.4.9.1
  • ruby2.5-doc-ri >= 2.5.8-lp151.4.9.1
  • ruby2.5-stdlib >= 2.5.8-lp151.4.9.1
  • ruby2.5-stdlib-debuginfo >= 2.5.8-lp151.4.9.1
Patchnames:
openSUSE-2020-586


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 CaaS Platform 3.0 ruby2.1 Not affected
SUSE CaaS Platform 4.0 ruby2.5 Released
SUSE Container as a Service Platform 1.0 ruby2.1 Affected
SUSE Container as a Service Platform 2.0 ruby2.1 Not affected
SUSE Enterprise Storage 6 ruby2.5 Released
SUSE Linux Enterprise High Performance Computing 12 SP4 ruby2.1 Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 ruby2.1 Not affected
SUSE Linux Enterprise High Performance Computing 15 LTSS ruby2.5 Released
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS ruby2.5 Released
SUSE Linux Enterprise Module for Basesystem 15 SP1 ruby2.5 Released
SUSE Linux Enterprise Module for Basesystem 15 SP2 ruby2.5 Released
SUSE Linux Enterprise Server 12 SP1 LTSS ruby2.1 Not affected
SUSE Linux Enterprise Server 12 SP2 BCL ruby2.1 Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS ruby2.1 Not affected
SUSE Linux Enterprise Server 12 SP3 BCL ruby2.1 Not affected
SUSE Linux Enterprise Server 12 SP3 LTSS ruby2.1 Not affected
SUSE Linux Enterprise Server 12 SP4 ruby2.1 Not affected
SUSE Linux Enterprise Server 12 SP5 ruby2.1 Not affected
SUSE Linux Enterprise Server 15 LTSS ruby2.5 Released
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux ruby2.5 Released
SUSE Linux Enterprise Server 15 SP1 LTSS ruby2.5 Released
SUSE Linux Enterprise Server ESPOS 15 ruby2.5 Released
SUSE Linux Enterprise Server for SAP Applications 12 SP2 ruby2.1 Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 ruby2.1 Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 ruby2.1 Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 ruby2.1 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 ruby2.5 Released
SUSE Linux Enterprise Server for SAP Applications 15 SP1 ruby2.5 Released
SUSE Linux Enterprise Software Development Kit 12 SP4 ruby2.1 Not affected
SUSE Linux Enterprise Software Development Kit 12 SP5 ruby2.1 Not affected
SUSE Manager Proxy 4.0 ruby2.5 Released
SUSE Manager Retail Branch Server 4.0 ruby2.5 Released
SUSE Manager Server 4.0 ruby2.5 Released