Upstream information

CVE-2021-26937 at MITRE

Description

encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.5
Vector AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 9.8 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network Network
Access Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High None
Integrity Impact High None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1182092 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
HPE Helion Openstack 8
  • screen >= 4.0.4-23.6.1
Patchnames:
HPE-Helion-OpenStack-8-2021-491
Image SLES12-SP4-Azure-BYOS
Image SLES12-SP4-EC2-HVM-BYOS
Image SLES12-SP4-GCE-BYOS
Image SLES12-SP4-OCI-BYOS
Image SLES12-SP4-SAP-Azure
Image SLES12-SP4-SAP-Azure-BYOS
Image SLES12-SP4-SAP-Azure-LI-BYOS-Production
Image SLES12-SP4-SAP-Azure-VLI-BYOS-Production
Image SLES12-SP4-SAP-EC2-HVM
Image SLES12-SP4-SAP-EC2-HVM-BYOS
Image SLES12-SP4-SAP-GCE
Image SLES12-SP4-SAP-GCE-BYOS
Image SLES12-SP4-SAP-OCI-BYOS
Image SLES12-SP5-Azure-BYOS
Image SLES12-SP5-Azure-Basic-On-Demand
Image SLES12-SP5-Azure-HPC-BYOS
Image SLES12-SP5-Azure-HPC-On-Demand
Image SLES12-SP5-Azure-SAP-BYOS
Image SLES12-SP5-Azure-SAP-On-Demand
Image SLES12-SP5-Azure-Standard-On-Demand
Image SLES12-SP5-EC2
Image SLES12-SP5-EC2-BYOS
Image SLES12-SP5-EC2-On-Demand
Image SLES12-SP5-EC2-SAP-BYOS
Image SLES12-SP5-EC2-SAP-On-Demand
Image SLES12-SP5-GCE
Image SLES12-SP5-GCE-BYOS
Image SLES12-SP5-GCE-On-Demand
Image SLES12-SP5-GCE-SAP-BYOS
Image SLES12-SP5-GCE-SAP-On-Demand
Image SLES12-SP5-OCI-BYOS-BYOS
Image SLES12-SP5-OCI-BYOS-SAP-BYOS
Image SLES12-SP5-SAP-Azure-LI-BYOS-Production
Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production
  • screen >= 4.0.4-23.6.1
Image SLES15-Azure-BYOS
Image SLES15-EC2-HVM-BYOS
Image SLES15-GCE-BYOS
Image SLES15-OCI-BYOS
Image SLES15-SAP-Azure
Image SLES15-SAP-Azure-BYOS
Image SLES15-SAP-Azure-LI-BYOS-Production
Image SLES15-SAP-Azure-VLI-BYOS-Production
Image SLES15-SAP-EC2-HVM
Image SLES15-SAP-EC2-HVM-BYOS
Image SLES15-SAP-GCE
Image SLES15-SAP-GCE-BYOS
Image SLES15-SAP-OCI-BYOS
Image SLES15-SP1-Azure-BYOS
Image SLES15-SP1-Azure-HPC-BYOS
Image SLES15-SP1-EC2-HPC-HVM-BYOS
Image SLES15-SP1-EC2-HVM-BYOS
Image SLES15-SP1-GCE-BYOS
Image SLES15-SP1-Manager-4-0-Azure-BYOS-Proxy
Image SLES15-SP1-Manager-4-0-Azure-BYOS-Server
Image SLES15-SP1-Manager-4-0-EC2-HVM-BYOS-Proxy
Image SLES15-SP1-Manager-4-0-EC2-HVM-BYOS-Server
Image SLES15-SP1-Manager-4-0-GCE-BYOS-Proxy
Image SLES15-SP1-Manager-4-0-GCE-BYOS-Server
Image SLES15-SP1-OCI-BYOS
Image SLES15-SP1-SAP-Azure
Image SLES15-SP1-SAP-Azure-BYOS
Image SLES15-SP1-SAP-Azure-LI-BYOS-Production
Image SLES15-SP1-SAP-Azure-VLI-BYOS-Production
Image SLES15-SP1-SAP-EC2-HVM
Image SLES15-SP1-SAP-EC2-HVM-BYOS
Image SLES15-SP1-SAP-GCE
Image SLES15-SP1-SAP-GCE-BYOS
Image SLES15-SP1-SAP-OCI-BYOS
Image SLES15-SP1-SAPCAL-Azure
Image SLES15-SP1-SAPCAL-EC2-HVM
Image SLES15-SP1-SAPCAL-GCE
Image SLES15-SP2-Azure-Basic
Image SLES15-SP2-Azure-Standard
Image SLES15-SP2-BYOS-Azure
Image SLES15-SP2-BYOS-EC2-HVM
Image SLES15-SP2-BYOS-GCE
Image SLES15-SP2-BYOS-OCI
Image SLES15-SP2-EC2-HVM
Image SLES15-SP2-GCE
Image SLES15-SP2-HPC-Azure
Image SLES15-SP2-HPC-BYOS-Azure
Image SLES15-SP2-HPC-BYOS-EC2-HVM
Image SLES15-SP2-Manager-4-1-Proxy-BYOS-Azure
Image SLES15-SP2-Manager-4-1-Proxy-BYOS-EC2-HVM
Image SLES15-SP2-Manager-4-1-Proxy-BYOS-GCE
Image SLES15-SP2-Manager-4-1-Server-BYOS-Azure
Image SLES15-SP2-Manager-4-1-Server-BYOS-EC2-HVM
Image SLES15-SP2-Manager-4-1-Server-BYOS-GCE
Image SLES15-SP2-SAP
Image SLES15-SP2-SAP-Azure
Image SLES15-SP2-SAP-Azure-LI-BYOS-Production
Image SLES15-SP2-SAP-Azure-VLI-BYOS-Production
Image SLES15-SP2-SAP-BYOS
Image SLES15-SP2-SAP-BYOS-Azure
Image SLES15-SP2-SAP-BYOS-EC2-HVM
Image SLES15-SP2-SAP-BYOS-GCE
Image SLES15-SP2-SAP-BYOS-OCI
Image SLES15-SP2-SAP-EC2-HVM
Image SLES15-SP2-SAP-GCE
Image SLES15-SP3
Image SLES15-SP3-Azure-Basic
Image SLES15-SP3-Azure-Standard
Image SLES15-SP3-BYOS
Image SLES15-SP3-BYOS-Azure
Image SLES15-SP3-BYOS-EC2-HVM
Image SLES15-SP3-BYOS-GCE
Image SLES15-SP3-BYOS-OCI
Image SLES15-SP3-EC2-HVM
Image SLES15-SP3-GCE
Image SLES15-SP3-HPC-Azure
Image SLES15-SP3-HPC-BYOS
Image SLES15-SP3-HPC-BYOS-Azure
Image SLES15-SP3-HPC-BYOS-EC2-HVM
Image SLES15-SP3-HPC-BYOS-GCE
Image SLES15-SP3-Manager-4-2-Proxy-BYOS
Image SLES15-SP3-Manager-4-2-Proxy-BYOS-Azure
Image SLES15-SP3-Manager-4-2-Proxy-BYOS-EC2-HVM
Image SLES15-SP3-Manager-4-2-Proxy-BYOS-GCE
Image SLES15-SP3-Manager-4-2-Server-BYOS
Image SLES15-SP3-Manager-4-2-Server-BYOS-Azure
Image SLES15-SP3-Manager-4-2-Server-BYOS-EC2-HVM
Image SLES15-SP3-Manager-4-2-Server-BYOS-GCE
Image SLES15-SP3-SAP
Image SLES15-SP3-SAP-Azure
Image SLES15-SP3-SAP-Azure-LI-BYOS-Production
Image SLES15-SP3-SAP-Azure-VLI-BYOS-Production
Image SLES15-SP3-SAP-BYOS
Image SLES15-SP3-SAP-BYOS-Azure
Image SLES15-SP3-SAP-BYOS-EC2-HVM
Image SLES15-SP3-SAP-BYOS-GCE
Image SLES15-SP3-SAP-BYOS-OCI
Image SLES15-SP3-SAP-EC2-HVM
Image SLES15-SP3-SAP-GCE
Image SLES15-SP3-SAPCAL-Azure
Image SLES15-SP3-SAPCAL-EC2-HVM
Image SLES15-SP3-SAPCAL-GCE
Image SLES15-SP4
Image SLES15-SP4-Azure-Basic
Image SLES15-SP4-Azure-Standard
Image SLES15-SP4-BYOS
Image SLES15-SP4-BYOS-Azure
Image SLES15-SP4-BYOS-EC2
Image SLES15-SP4-BYOS-GCE
Image SLES15-SP4-EC2
Image SLES15-SP4-GCE
Image SLES15-SP4-HPC
Image SLES15-SP4-HPC-Azure
Image SLES15-SP4-HPC-BYOS
Image SLES15-SP4-HPC-BYOS-Azure
Image SLES15-SP4-HPC-BYOS-EC2
Image SLES15-SP4-HPC-BYOS-GCE
Image SLES15-SP4-HPC-EC2
Image SLES15-SP4-HPC-GCE
Image SLES15-SP4-Manager-Proxy-4-3-BYOS
Image SLES15-SP4-Manager-Proxy-4-3-BYOS-Azure
Image SLES15-SP4-Manager-Proxy-4-3-BYOS-EC2
Image SLES15-SP4-Manager-Proxy-4-3-BYOS-GCE
Image SLES15-SP4-Manager-Server-4-3-BYOS
Image SLES15-SP4-Manager-Server-4-3-BYOS-Azure
Image SLES15-SP4-Manager-Server-4-3-BYOS-EC2
Image SLES15-SP4-Manager-Server-4-3-BYOS-GCE
Image SLES15-SP4-SAP
Image SLES15-SP4-SAP-Azure
Image SLES15-SP4-SAP-Azure-LI-BYOS
Image SLES15-SP4-SAP-Azure-LI-BYOS-Production
Image SLES15-SP4-SAP-Azure-VLI-BYOS
Image SLES15-SP4-SAP-Azure-VLI-BYOS-Production
Image SLES15-SP4-SAP-BYOS
Image SLES15-SP4-SAP-BYOS-Azure
Image SLES15-SP4-SAP-BYOS-EC2
Image SLES15-SP4-SAP-BYOS-GCE
Image SLES15-SP4-SAP-EC2
Image SLES15-SP4-SAP-GCE
Image SLES15-SP4-SAPCAL
Image SLES15-SP4-SAPCAL-Azure
Image SLES15-SP4-SAPCAL-EC2
Image SLES15-SP4-SAPCAL-GCE
  • screen >= 4.6.2-5.3.1
SUSE CaaS Platform 4.0
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SUSE-CAASP-4.0-2021-492
SUSE Enterprise Storage 6
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-Storage-6-2021-492
SUSE Linux Enterprise Desktop 15 SP2
SUSE Linux Enterprise High Performance Computing 15 SP2
SUSE Linux Enterprise Module for Basesystem 15 SP2
SUSE Linux Enterprise Server 15 SP2
SUSE Linux Enterprise Server for SAP Applications 15 SP2
SUSE Linux Enterprise Storage 7
SUSE Manager Proxy 4.1
SUSE Manager Retail Branch Server 4.1
SUSE Manager Server 4.1
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP2-2021-492
SUSE Linux Enterprise Desktop 15 SP3
SUSE Linux Enterprise High Performance Computing 15 SP3
SUSE Linux Enterprise Module for Basesystem 15 SP3
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server for SAP Applications 15 SP3
SUSE Linux Enterprise Storage 7.1
SUSE Manager Proxy 4.2
SUSE Manager Retail Branch Server 4.2
SUSE Manager Server 4.2
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 SP3 GA screen-4.6.2-5.3.1
SUSE Linux Enterprise Desktop 15 SP4
SUSE Linux Enterprise High Performance Computing 15 SP4
SUSE Linux Enterprise Module for Basesystem 15 SP4
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15 SP4
SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 SP4 GA screen-4.6.2-5.3.1
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-HPC-15-SP1-ESPOS-2021-492
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-HPC-15-SP1-LTSS-2021-492
SUSE Linux Enterprise High Performance Computing 15-ESPOS
SUSE Linux Enterprise High Performance Computing 15-LTSS
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-HPC-15-2021-492
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-POS-12-SP2-CLIENT-2021-491
SUSE Linux Enterprise Server 12 SP2-BCL
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-BCL-2021-491
SUSE Linux Enterprise Server 12 SP2-ESPOS
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-ESPOS-2021-491
SUSE Linux Enterprise Server 12 SP2-LTSS
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-2021-491
SUSE Linux Enterprise Server 12 SP3-BCL
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-BCL-2021-491
SUSE Linux Enterprise Server 12 SP3-ESPOS
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-ESPOS-2021-491
SUSE Linux Enterprise Server 12 SP3-LTSS
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-2021-491
SUSE Linux Enterprise Server 12 SP4-ESPOS
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SERVER-12-SP4-ESPOS-2021-491
SUSE Linux Enterprise Server 12 SP4-LTSS
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SERVER-12-SP4-LTSS-2021-491
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SERVER-12-SP5-2021-491
SUSE Linux Enterprise Server 15 SP1-BCL
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-SLES-15-SP1-BCL-2021-492
SUSE Linux Enterprise Server 15 SP1-LTSS
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-SLES-15-SP1-LTSS-2021-492
SUSE Linux Enterprise Server 15-LTSS
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-SLES-15-2021-492
SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SAP-12-SP2-2021-491
SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SAP-12-SP3-2021-491
SUSE Linux Enterprise Server for SAP Applications 12 SP4
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-SLE-SAP-12-SP4-2021-491
SUSE Linux Enterprise Server for SAP Applications 15 SP1
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP1-2021-492
SUSE Linux Enterprise Server for SAP Applications 15
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-SLES_SAP-15-2021-492
SUSE Manager Proxy 4.0
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-SUSE-Manager-Proxy-4.0-2021-492
SUSE Manager Retail Branch Server 4.0
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.0-2021-492
SUSE Manager Server 4.0
  • screen >= 4.6.2-5.3.1
Patchnames:
SUSE-SLE-Product-SUSE-Manager-Server-4.0-2021-492
SUSE OpenStack Cloud 7
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-OpenStack-Cloud-7-2021-491
SUSE OpenStack Cloud 8
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-OpenStack-Cloud-8-2021-491
SUSE OpenStack Cloud 9
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-OpenStack-Cloud-9-2021-491
SUSE OpenStack Cloud Crowbar 8
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-OpenStack-Cloud-Crowbar-8-2021-491
SUSE OpenStack Cloud Crowbar 9
  • screen >= 4.0.4-23.6.1
Patchnames:
SUSE-OpenStack-Cloud-Crowbar-9-2021-491
openSUSE Leap 15.2
  • screen >= 4.6.2-lp152.6.3.1
Patchnames:
openSUSE-2021-304
openSUSE Leap 15.3
  • screen >= 4.6.2-5.3.1
Patchnames:
openSUSE Leap 15.3 GA screen-4.6.2-5.3.1
openSUSE Leap 15.4
  • screen >= 4.6.2-5.3.1
Patchnames:
openSUSE Leap 15.4 GA screen-4.6.2-5.3.1
openSUSE Tumbleweed
  • screen >= 4.9.0-1.1
Patchnames:
openSUSE Tumbleweed GA screen-4.9.0-1.1


First public cloud image revisions this CVE is fixed in:


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
HPE Helion OpenStack 8 screen Released
SUSE CaaS Platform 4.0 screen Released
SUSE Enterprise Storage 5 screen Affected
SUSE Enterprise Storage 6 screen Released
SUSE Linux Enterprise Desktop 15 SP1 screen Released
SUSE Linux Enterprise Desktop 15 SP2 screen Released
SUSE Linux Enterprise High Performance Computing 12 SP5 screen Released
SUSE Linux Enterprise High Performance Computing 15 LTSS screen Released
SUSE Linux Enterprise High Performance Computing 15 SP1 screen Released
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS screen Released
SUSE Linux Enterprise High Performance Computing 15 SP2 screen Released
SUSE Linux Enterprise Module for Basesystem 15 SP1 screen Released
SUSE Linux Enterprise Module for Basesystem 15 SP2 screen Released
SUSE Linux Enterprise Point of Service 11 SP3 screen Not affected
SUSE Linux Enterprise Point of Service Image Server 12 SP2 screen Released
SUSE Linux Enterprise Server 11 SP4 LTSS screen Not affected
SUSE Linux Enterprise Server 12 SP2 BCL screen Released
SUSE Linux Enterprise Server 12 SP2 ESPOS screen Released
SUSE Linux Enterprise Server 12 SP2 LTSS screen Released
SUSE Linux Enterprise Server 12 SP3 BCL screen Released
SUSE Linux Enterprise Server 12 SP3 ESPOS screen Released
SUSE Linux Enterprise Server 12 SP3 LTSS screen Released
SUSE Linux Enterprise Server 12 SP4 ESPOS screen Released
SUSE Linux Enterprise Server 12 SP4 LTSS screen Released
SUSE Linux Enterprise Server 12 SP5 screen Released
SUSE Linux Enterprise Server 15 ESPOS screen Released
SUSE Linux Enterprise Server 15 LTSS screen Released
SUSE Linux Enterprise Server 15 SP1 screen Released
SUSE Linux Enterprise Server 15 SP1 LTSS screen Released
SUSE Linux Enterprise Server 15 SP2 screen Released
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 screen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP2 screen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP3 screen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 screen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 screen Released
SUSE Linux Enterprise Server for SAP Applications 15 screen Released
SUSE Linux Enterprise Server for SAP Applications 15 SP1 screen Released
SUSE Linux Enterprise Server for SAP Applications 15 SP2 screen Released
SUSE Linux Enterprise Storage 6 screen Released
SUSE Linux Enterprise Storage 7 screen Released
SUSE Manager Proxy 4.0 screen Released
SUSE Manager Proxy 4.1 screen Released
SUSE Manager Retail Branch Server 4.0 screen Released
SUSE Manager Retail Branch Server 4.1 screen Released
SUSE Manager Server 4.0 screen Released
SUSE Manager Server 4.1 screen Released
SUSE OpenStack Cloud 7 screen Released
SUSE OpenStack Cloud 8 screen Released
SUSE OpenStack Cloud 9 screen Released
SUSE OpenStack Cloud Crowbar 8 screen Released
SUSE OpenStack Cloud Crowbar 9 screen Released