Upstream information
Description
curl 7.75.0 through 7.76.1 suffers from a use-after-free vulnerability resulting in already freed memory being used when a TLS 1.3 session ticket arrives over a connection. A malicious server can use this in rare unfortunate circumstances to potentially reach remote code execution in the client. When libcurl at run-time sets up support for TLS 1.3 session tickets on a connection using OpenSSL, it stores pointers to the transfer in-memory object for later retrieval when a session ticket arrives. If the connection is used by multiple transfers (like with a reused HTTP/1.1 connection or multiplexed HTTP/2 connection) that first transfer object might be freed before the new session is established on that connection and then the function will access a memory buffer that might be freed. When using that memory, libcurl might even call a function pointer in the object, making it possible for a remote code execution if the server could somehow manage to get crafted memory content into the correct place in memory.Upstream Security Advisories:
SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
| 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 |
| National Vulnerability Database | |
|---|---|
| Base Score | 8.1 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | High |
| Integrity Impact | High |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| 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 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP4 GA curl-7.79.1-150400.3.1 |
| SUSE Linux Enterprise Micro 5.3 |
| Patchnames: SUSE Linux Enterprise Micro 5.3 GA curl-7.79.1-150400.5.6.1 |
| SUSE Linux Enterprise Micro 5.4 |
| Patchnames: SUSE Linux Enterprise Micro 5.4 GA curl-7.79.1-150400.5.15.1 |
| openSUSE Leap 15.4 |
| Patchnames: openSUSE Leap 15.4 GA curl-7.79.1-150400.3.1 |
| openSUSE Tumbleweed |
| Patchnames: openSUSE Tumbleweed GA curl-7.79.1-1.1 |
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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SLES15-SP4-CHOST-BYOS | curl | Already fixed |
| SLES15-SP4-CHOST-BYOS-Aliyun | curl | Already fixed |
| SLES15-SP4-CHOST-BYOS-Azure | curl | Already fixed |
| SLES15-SP4-CHOST-BYOS-EC2 | curl | Already fixed |
| SLES15-SP4-CHOST-BYOS-GCE | curl | Already fixed |
| SLES15-SP4-CHOST-BYOS-SAP-CCloud | curl | Already fixed |
| SUSE Enterprise Storage 7 | curl | Not affected |
| SUSE Enterprise Storage 7.1 | curl | Not affected |
| SUSE Linux Enterprise Desktop 15 SP4 | curl | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP5 | curl | Already fixed |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | curl | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | curl | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | curl | Already fixed |
| SUSE Linux Enterprise Micro 5.1 | curl | Not affected |
| SUSE Linux Enterprise Micro 5.2 | curl | Not affected |
| SUSE Linux Enterprise Micro 5.3 | curl | Already fixed |
| SUSE Linux Enterprise Micro 5.4 | curl | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | curl | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | curl | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP3 | curl | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | curl | Not affected |
| SUSE Linux Enterprise Server 12-LTSS | curl | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | curl | Already fixed |
| SUSE Linux Enterprise Server 15 SP5 | curl | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | curl | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | curl | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | curl | Already fixed |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | curl | Not affected |
| SUSE Manager Proxy 4.2 | curl | Not affected |
| SUSE Manager Proxy 4.3 | curl | Already fixed |
| SUSE Manager Retail Branch Server 4.2 | curl | Not affected |
| SUSE Manager Retail Branch Server 4.3 | curl | Already fixed |
| SUSE Manager Server 4.2 | curl | Not affected |
| SUSE Manager Server 4.3 | curl | Already fixed |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| 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-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 |
| SLES15-SP3-CHOST-BYOS-SAP-CCloud | curl | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 | curl | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | 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 High Performance Computing 15 SP2 | curl | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | curl | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | curl | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | curl | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | curl | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | curl | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | curl | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | curl | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | 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 Server 12 SP2-BCL | curl | Not affected |
| SUSE Linux Enterprise Server 12 SP4 | curl | Not affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | curl | Not affected |
| SUSE Linux Enterprise Server 15 SP1 | curl | Not affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | curl | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | curl | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | curl | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | curl | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | curl | Not affected |
| SUSE Linux Enterprise Server 15-ESPOS | curl | Not affected |
| SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | curl | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | 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 Linux Enterprise Server for SAP Applications 15 SP2 | curl | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | curl | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | curl | Not affected |
| SUSE CaaS Platform 3.0 | curl | Not affected |
| SUSE CaaS Platform 4.0 | curl | Not affected |
| SUSE Enterprise Storage 6 | curl | Not affected |
| SUSE Linux Enterprise Desktop 11 SP4 | curl | Not affected |
| SUSE Linux Enterprise Desktop 12 | curl | Not affected |
| SUSE Linux Enterprise Desktop 12 SP1 | curl | Not affected |
| SUSE Linux Enterprise Desktop 12 SP2 | curl | Not affected |
| SUSE Linux Enterprise Desktop 12 SP3 | curl | Not affected |
| SUSE Linux Enterprise Desktop 12 SP4 | curl | Not affected |
| SUSE Linux Enterprise Desktop 15 | curl | Not affected |
| SUSE Linux Enterprise Desktop 15 SP1 | curl | Not affected |
| SUSE Linux Enterprise Desktop 15 SP2 | curl | Not affected |
| SUSE Linux Enterprise Desktop 15 SP3 | curl | Not affected |
| SUSE Linux Enterprise Micro 5.0 | curl | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 | curl | Not affected |
| SUSE Linux Enterprise Point of Service 11 SP3 | curl | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | curl | Not affected |
| SUSE Linux Enterprise Server 11 SP3 | curl | Not affected |
| SUSE Linux Enterprise Server 11 SP3-LTSS | curl | Not affected |
| SUSE Linux Enterprise Server 11 SP4 | curl | Not affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS | curl | Not affected |
| SUSE Linux Enterprise Server 11 SP4-LTSS | curl | Not affected |
| SUSE Linux Enterprise Server 12 | curl | Not affected |
| SUSE Linux Enterprise Server 12 SP1 | curl | Not affected |
| SUSE Linux Enterprise Server 12 SP1-LTSS | curl | Not affected |
| SUSE Linux Enterprise Server 12 SP2 | curl | Not affected |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | curl | Not affected |
| SUSE Linux Enterprise Server 12 SP2-LTSS | curl | Not affected |
| SUSE Linux Enterprise Server 12 SP3 | 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 15 | curl | Not affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | curl | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | curl | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | curl | Not affected |
| SUSE Linux Enterprise Server 15-LTSS | curl | Not affected |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | curl | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 11 SP4 | curl | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 | curl | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | curl | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | curl | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | curl | Not affected |
| SUSE Linux Enterprise Software Development Kit 11 SP4 | curl | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 | curl | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP1 | curl | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | curl | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | curl | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | curl | Not affected |
| SUSE Manager Proxy 4.0 | curl | Not affected |
| SUSE Manager Proxy 4.1 | curl | Not affected |
| SUSE Manager Retail Branch Server 4.0 | curl | Not affected |
| SUSE Manager Retail Branch Server 4.1 | curl | Not affected |
| SUSE Manager Server 4.0 | curl | Not affected |
| SUSE Manager Server 4.1 | curl | Not affected |
| SUSE OpenStack Cloud 7 | 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 |
| Container Status | ||
| bci/python bci/python:3 bci/ruby rancher/seedimage-builder/5.3 suse/manager/4.3/proxy-httpd suse/manager/4.3/proxy-salt-broker suse/sle-micro-rancher/5.3 suse/sle-micro-rancher/5.4 suse/sle15:15.4 suse/sle15:15.5 suse/sles/15.4/libguestfs-tools:0.49.0 suse/sles/15.4/virt-handler:0.49.0 suse/sles/15.5/cdi-cloner:1.55.0 suse/sles/15.5/cdi-importer:1.55.0 suse/sles/15.5/cdi-uploadserver:1.55.0 suse/sles/15.5/libguestfs-tools:0.58.0 suse/sles/15.5/virt-handler:0.58.0 suse/sles/15.5/virt-launcher:0.58.0 | curl | Already fixed |
| suse/sle-micro-rancher/5.2 suse/sle15:15.3 suse/sles/15.3/libguestfs-tools:0.45.0 | curl | Not affected |
SUSE Timeline for this CVE
CVE page created: Mon May 17 10:43:12 2021CVE page last modified: Mon May 22 15:45:59 2023
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