CVE-2021-22897 Detail

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.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  N/A
NVD score not yet provided.


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Hyperlink Resource
https://curl.se/docs/CVE-2021-22897.html
https://github.com/curl/curl/commit/bbb71507b7bab52002f9b1e0880bed6a32834511
https://hackerone.com/reports/1172857

Weakness Enumeration

CWE-ID CWE Name Source
CWE-840 Business Logic Errors Contributor acceptance level HackerOne  

Change History

0 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-22897
NVD Published Date:
06/11/2021
NVD Last Modified:
06/11/2021
Source:
HackerOne