CVE-2021-22897

Description

curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single "static" variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly.

CVSS breakdown

Affected products

• haxx / curl7.61.0 – 7.76.1
• NetApp / cloud_backup
• NetApp / h300e_firmware
• NetApp / h300s_firmware
• NetApp / h410s_firmware
• NetApp / h500e_firmware
• NetApp / h500s_firmware
• NetApp / h700e_firmware
• NetApp / h700s_firmware
• NetApp / hci_compute_node_firmware
• NetApp / solidfire_baseboard_management_controller_firmware
• NetApp / solidfire,_enterprise_sds_&_hci_storage_node
• NetApp / solidfire_&_hci_management_node
• oracle / communications_cloud_native_core_binding_support_function1.11.0 – 1.11.0
• oracle / communications_cloud_native_core_network_function_cloud_native_environment1.10.0 – 1.10.0
• oracle / communications_cloud_native_core_network_repository_function1.15.1 – 1.15.1
• oracle / communications_cloud_native_core_network_repository_function1.15.0 – 1.15.0
• oracle / communications_cloud_native_core_network_slice_selection_function1.8.0 – 1.8.0
• oracle / communications_cloud_native_core_service_communication_proxy1.15.0 – 1.15.0
• oracle / essbase11.1.2.4.047
• oracle / mysql_server5.7.34
• Siemens / sinec_infrastructure_network_services1.0.1.1
• Splunk / Universal Forwarder8.2.0 – 8.2.12
• Splunk / Universal Forwarder9.1.0 – 9.1.0

References

• MISChttps://hackerone.com/reports/1172857
• MISChttps://curl.se/docs/CVE-2021-22897.html
• PATCHhttps://github.com/curl/curl/commit/bbb71507b7bab52002f9b1e0880bed6a32834511
• VENDOR_ADVISORYhttps://www.oracle.com//security-alerts/cpujul2021.html
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpujan2022.html
• MISChttps://security.netapp.com/advisory/ntap-20210727-0007/
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuapr2022.html
• MISChttps://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf