CVE-2021-22901

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.

Link	Resource
https://curl.se/docs/CVE-2021-22901.html	Exploit Patch
https://hackerone.com/reports/1180380	Exploit Issue Tracking
https://github.com/curl/curl/commit/7f4a9a9b2a49547eae24d2e19bc5c346e9026479	Patch Third Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html	Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20210723-0001/	Third Party Advisory
https://security.netapp.com/advisory/ntap-20210727-0007/	Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html	Patch Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html	Patch Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-732250.pdf	Third Party Advisory

Configuration 1

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:essbase:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:essbase:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function:1.8.0:*:*:*:*:*:*:* cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.0:*:*:*:*:*:*:* cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:* cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.15.0:*:*:*:*:*:*:* cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.1:*:*:*:*:*:*:* cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:1.11.0:*:*:*:*:*:*:* cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:solidfire_&_hci_management_node:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:* cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:solidfire,_enterprise_sds_&_hci_storage_node:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vsphere:*:* cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*

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Published : 2021-06-11 04:15

Updated : 2022-05-13 05:30

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NVD link : CVE-2021-22901

Mitre link : CVE-2021-22901

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CWE-416