Upstream information

CVE-2021-22926 at MITRE

Description

libcurl-using applications can ask for a specific client certificate to be used in a transfer. This is done with the `CURLOPT_SSLCERT` option (`--cert` with the command line tool).When libcurl is built to use the macOS native TLS library Secure Transport, an application can ask for the client certificate by name or with a file name - using the same option. If the name exists as a file, it will be used instead of by name.If the appliction runs with a current working directory that is writable by other users (like `/tmp`), a malicious user can create a file name with the same name as the app wants to use by name, and thereby trick the application to use the file based cert instead of the one referred to by name making libcurl send the wrong client certificate in the TLS connection handshake.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
  SUSE
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entries: 1188510 [RESOLVED / INVALID], 1192447 [RESOLVED / FIXED], 1192757 [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Please note that this evaluation state might be work in progress, incomplete or outdated.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
HPE Helion OpenStack 8 curl Not affected
SLES15-EC2-CHOST-HVM-BYOS curl Not affected
SLES15-SP1-CHOST-BYOS-Azure curl Not affected
SLES15-SP1-CHOST-BYOS-EC2 curl Not affected
SLES15-SP1-CHOST-BYOS-GCE curl Not affected
SLES15-SP2-CHOST-BYOS-Aliyun curl Not affected
SLES15-SP2-CHOST-BYOS-Azure curl Not affected
SLES15-SP2-CHOST-BYOS-EC2 curl Not affected
SLES15-SP2-CHOST-BYOS-GCE curl Not affected
SLES15-SP2-CHOST-BYOS-OpenStack curl Not affected
SLES15-SP3-CHOST-BYOS-Aliyun curl Not affected
SLES15-SP3-CHOST-BYOS-Azure curl Not affected
SLES15-SP3-CHOST-BYOS-EC2 curl Not affected
SLES15-SP3-CHOST-BYOS-GCE curl Not affected
SUSE CaaS Platform 4.0 curl Not affected
SUSE Enterprise Storage 6 curl Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 curl Not affected
SUSE Linux Enterprise High Performance Computing 15 LTSS curl Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS curl Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS curl Not affected
SUSE Linux Enterprise Micro 5.0 curl Not affected
SUSE Linux Enterprise Micro 5.1 curl Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 curl Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 curl Not affected
SUSE Linux Enterprise Point of Service 11 SP3 curl Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS curl Not affected
SUSE Linux Enterprise Server 12 SP2 BCL curl Not affected
SUSE Linux Enterprise Server 12 SP3 BCL curl Not affected
SUSE Linux Enterprise Server 12 SP3 ESPOS curl Not affected
SUSE Linux Enterprise Server 12 SP3 LTSS curl Not affected
SUSE Linux Enterprise Server 12 SP4 ESPOS curl Not affected
SUSE Linux Enterprise Server 12 SP4 LTSS curl Not affected
SUSE Linux Enterprise Server 12 SP5 curl Not affected
SUSE Linux Enterprise Server 15 ESPOS curl Not affected
SUSE Linux Enterprise Server 15 LTSS curl Not affected
SUSE Linux Enterprise Server 15 SP1 LTSS curl Not affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 curl Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 curl Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 curl Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 curl Not affected
SUSE Linux Enterprise Server for SAP Applications 15 curl Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 curl Not affected
SUSE Manager Proxy 4.0 curl Not affected
SUSE Manager Retail Branch Server 4.0 curl Not affected
SUSE Manager Server 4.0 curl Not affected
SUSE OpenStack Cloud 8 curl Not affected
SUSE OpenStack Cloud 9 curl Not affected
SUSE OpenStack Cloud Crowbar 8 curl Not affected
SUSE OpenStack Cloud Crowbar 9 curl Not affected
bci/ruby:2.5
suse/sles/15.3/libguestfs-tools:0.45.0		 curlNot affected