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.
References
Link | Resource |
---|---|
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf | Patch Third Party Advisory |
https://cert-portal.siemens.com/productcert/pdf/ssa-732250.pdf | Third Party Advisory |
https://curl.se/docs/CVE-2021-22901.html | Exploit Patch Vendor Advisory |
https://github.com/curl/curl/commit/7f4a9a9b2a49547eae24d2e19bc5c346e9026479 | Patch Third Party Advisory |
https://hackerone.com/reports/1180380 | Exploit Issue Tracking 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/cpujul2021.html | Patch Third Party Advisory |
https://www.oracle.com/security-alerts/cpuapr2022.html | Patch Third Party Advisory |
https://www.oracle.com/security-alerts/cpujan2022.html | Patch Third Party Advisory |
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History
27 Mar 2024, 15:12
Type | Values Removed | Values Added |
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First Time |
Splunk
Splunk universal Forwarder |
|
CPE | cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:* |
Information
Published : 2021-06-11 16:15
Updated : 2024-03-27 15:12
NVD link : CVE-2021-22901
Mitre link : CVE-2021-22901
CVE.ORG link : CVE-2021-22901
JSON object : View
Products Affected
netapp
- h300s_firmware
- h700e_firmware
- hci_compute_node_firmware
- h410s_firmware
- oncommand_insight
- h300e
- h300s
- h700s
- cloud_backup
- solidfire_\&_hci_management_node
- h500e_firmware
- h300e_firmware
- snapcenter
- hci_compute_node
- active_iq_unified_manager
- h410s
- h500s_firmware
- oncommand_workflow_automation
- h700e
- h500s
- h500e
- h700s_firmware
- solidfire\,_enterprise_sds_\&_hci_storage_node
- solidfire_baseboard_management_controller_firmware
splunk
- universal_forwarder
oracle
- communications_cloud_native_core_binding_support_function
- communications_cloud_native_core_network_slice_selection_function
- communications_cloud_native_core_service_communication_proxy
- communications_cloud_native_core_network_repository_function
- communications_cloud_native_core_network_function_cloud_native_environment
- essbase
- mysql_server
siemens
- sinec_infrastructure_network_services
haxx
- curl
CWE
CWE-416
Use After Free