Upstream information

CVE-2021-20197 at MITRE

Description

There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 3.3
Vector AV:L/AC:M/Au:N/C:P/I:P/A:N
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 6.3 6.3
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Access Vector Local Local
Access Complexity High High
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact None None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1181452 [NEW]

No SUSE Security Announcements cross referenced.


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Please note that this evaluation state might be work in progress, incomplete or outdated.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
Carwos 1 binutils Not affected
HPE Helion OpenStack 8 binutils Affected
SUSE CaaS Platform 4.0 binutils Not affected
SUSE Enterprise Storage 5 binutils Unsupported
SUSE Enterprise Storage 6 binutils Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 binutils Affected
SUSE Linux Enterprise High Performance Computing 15 LTSS binutils Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS binutils Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 binutils Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP2 binutils Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP1 binutils Unsupported
SUSE Linux Enterprise Module for Development Tools 15 SP2 binutils Not affected
SUSE Linux Enterprise Point of Service 11 SP3 binutils Affected
SUSE Linux Enterprise Point of Service Image Server 12 binutils Unsupported
SUSE Linux Enterprise Server 11 SP4 LTSS binutils Affected
SUSE Linux Enterprise Server 12 SP2 BCL binutils Affected
SUSE Linux Enterprise Server 12 SP2 ESPOS binutils Unsupported
SUSE Linux Enterprise Server 12 SP2 LTSS binutils Affected
SUSE Linux Enterprise Server 12 SP3 BCL binutils Affected
SUSE Linux Enterprise Server 12 SP3 ESPOS binutils Affected
SUSE Linux Enterprise Server 12 SP3 LTSS binutils Affected
SUSE Linux Enterprise Server 12 SP4 ESPOS binutils Affected
SUSE Linux Enterprise Server 12 SP4 LTSS binutils Affected
SUSE Linux Enterprise Server 12 SP5 binutils Affected
SUSE Linux Enterprise Server 15 LTSS binutils Affected
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux binutils Not affected
SUSE Linux Enterprise Server 15 SP1 LTSS binutils Not affected
SUSE Linux Enterprise Server ESPOS 15 binutils Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 binutils Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP3 binutils Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 binutils Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 binutils Affected
SUSE Linux Enterprise Server for SAP Applications 15 binutils Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 binutils Not affected
SUSE Manager Proxy 4.0 binutils Not affected
SUSE Manager Retail Branch Server 4.0 binutils Not affected
SUSE Manager Server 4.0 binutils Not affected
SUSE OpenStack Cloud 7 binutils Unsupported
SUSE OpenStack Cloud 8 binutils Affected
SUSE OpenStack Cloud 9 binutils Affected
SUSE OpenStack Cloud Crowbar 8 binutils Affected
SUSE OpenStack Cloud Crowbar 9 binutils Affected