vulnerability

Huawei EulerOS: CVE-2021-22897: curl security update

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
Jun 11, 2021
Added
Aug 10, 2021
Modified
Aug 13, 2025

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.

Solutions

huawei-euleros-2_0_sp8-upgrade-curlhuawei-euleros-2_0_sp8-upgrade-libcurlhuawei-euleros-2_0_sp8-upgrade-libcurl-devel
Title
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