发布于3月6日3月6日 Members Oracle Linux: CVE-2023-27535: ELSA-2023-3106:curl security and bug fix update (MODERATE) (Multiple Advisories) Severity 5 CVSS (AV:N/AC:H/Au:N/C:C/I:N/A:N) Published 03/20/2023 Created 05/18/2023 Added 05/17/2023 Modified 12/22/2024 Description An authentication bypass vulnerability exists in libcurl <8.0.0 in the FTP connection reuse feature that can result in wrong credentials being used during subsequent transfers. Previously created connections are kept in a connection pool for reuse if they match the current setup. However, certain FTP settings such as CURLOPT_FTP_ACCOUNT, CURLOPT_FTP_ALTERNATIVE_TO_USER, CURLOPT_FTP_SSL_CCC, and CURLOPT_USE_SSL were not included in the configuration match checks, causing them to match too easily. This could lead to libcurl using the wrong credentials when performing a transfer, potentially allowing unauthorized access to sensitive information. A flaw was found in the Curl package. Libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, several FTP settings were left out from the configuration match checks, making them match too easily. The problematic settings are `CURLOPT_FTP_ACCOUNT`, `CURLOPT_FTP_ALTERNATIVE_TO_USER`, `CURLOPT_FTP_SSL_CCC` and `CURLOPT_USE_SSL` level. Solution(s) oracle-linux-upgrade-curl oracle-linux-upgrade-curl-minimal oracle-linux-upgrade-libcurl oracle-linux-upgrade-libcurl-devel oracle-linux-upgrade-libcurl-minimal References https://attackerkb.com/topics/cve-2023-27535 CVE - 2023-27535 ELSA-2023-3106 ELSA-2023-2650
