Upstream information

CVE-2021-32760 at MITRE

Description

containerd is a container runtime. A bug was found in containerd versions prior to 1.4.8 and 1.5.4 where pulling and extracting a specially-crafted container image can result in Unix file permission changes for existing files in the host’s filesystem. Changes to file permissions can deny access to the expected owner of the file, widen access to others, or set extended bits like setuid, setgid, and sticky. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in containerd 1.5.4 and 1.4.8. As a workaround, ensure that users only pull images from trusted sources. Linux security modules (LSMs) like SELinux and AppArmor can limit the files potentially affected by this bug through policies and profiles that prevent containerd from interacting with specific files.

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 6.8
Vector AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 6.3 3
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:L
Access Vector Network Network
Access Complexity Low High
Privileges Required None Low
User Interaction Required Required
Scope Unchanged Changed
Confidentiality Impact Low None
Integrity Impact Low None
Availability Impact Low Low
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1188282 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
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-SP3-CHOST-BYOS-Aliyun
Image SLES15-SP3-CHOST-BYOS-Azure
Image SLES15-SP3-CHOST-BYOS-EC2
Image SLES15-SP3-CHOST-BYOS-GCE
  • containerd >= 1.4.4-5.36.1
  • containerd-ctr >= 1.4.4-5.36.1
SUSE Linux Enterprise Module for Containers 12
  • containerd >= 1.4.4-16.42.1
Patchnames:
SUSE-SLE-Module-Containers-12-2021-2413
SUSE Linux Enterprise Module for Containers 15 SP2
  • containerd >= 1.4.4-5.36.1
Patchnames:
SUSE-SLE-Module-Containers-15-SP2-2021-2412
SUSE Linux Enterprise Module for Containers 15 SP3
  • containerd >= 1.4.4-5.36.1
Patchnames:
SUSE-SLE-Module-Containers-15-SP3-2021-2412
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP2
  • containerd-ctr >= 1.4.4-5.36.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP2-2021-2412
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP3
  • containerd-ctr >= 1.4.4-5.36.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP3-2021-2412
SUSE MicroOS 5.0
  • containerd >= 1.4.4-5.36.1
Patchnames:
SUSE-SUSE-MicroOS-5.0-2021-2412
openSUSE Leap 15.2
  • containerd >= 1.4.4-lp152.2.9.1
  • containerd-ctr >= 1.4.4-lp152.2.9.1
Patchnames:
openSUSE-2021-1081
openSUSE Leap 15.3
  • containerd >= 1.4.4-5.36.1
  • containerd-ctr >= 1.4.4-5.36.1
Patchnames:
openSUSE-SLE-15.3-2021-2412


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
SUSE CaaS Platform 4.0 containerd In progress
SUSE Enterprise Storage 6 containerd In progress
SUSE Linux Enterprise High Performance Computing 15 LTSS containerd In progress
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS containerd In progress
SUSE Linux Enterprise Micro 5.0 containerd Released
SUSE Linux Enterprise Module for Containers 12 containerd Released
SUSE Linux Enterprise Module for Containers 15 SP2 containerd Released
SUSE Linux Enterprise Module for Containers 15 SP3 containerd Released
SUSE Linux Enterprise Server 15 LTSS containerd In progress
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux containerd In progress
SUSE Linux Enterprise Server 15 SP1 LTSS containerd In progress
SUSE Linux Enterprise Server ESPOS 15 containerd In progress
SUSE Linux Enterprise Server for SAP Applications 15 containerd In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP1 containerd In progress
SUSE Manager Proxy 4.0 containerd In progress
SUSE Manager Retail Branch Server 4.0 containerd In progress
SUSE Manager Server 4.0 containerd In progress