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.

Risk Information

Base Score

5.3

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Score

Exploitation Probability

0.83

Associated Vulnerability

Vulnerability	OS Platform
Vulnerability CVE-2021-22897,CVE-2021-22898,CVE-2021-22901 are affected in Curl For Windows 7.76.1	Windows
Vulnerabilities CVE-2021-22901,CVE-2021-22898,CVE-2021-22897 are fixed in Curl For Windows 7.77.0	Windows
Exposure of Resource to Wrong Sphere Vulnerability (CVE-2021-22897)	NCM

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234