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.
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cve-icon MITRE Information

Status: PUBLISHED

Assigner: hackerone

Published: 2021-06-11T15:49:38

Updated: 2022-04-19T23:53:46

Reserved: 2021-01-06T00:00:00


Link: CVE-2021-22897

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-06-11T16:15:10.963

Modified: 2024-03-27T15:47:40.347


Link: CVE-2021-22897

JSON object: View

cve-icon Redhat Information

No data.