libcurl-using applications can ask for a specific client certificate to be used in a transfer. This is done with the `CURLOPT_SSLCERT` option (`--cert` with the command line tool).When libcurl is built to use the macOS native TLS library Secure Transport, an application can ask for the client certificate by name or with a file name - using the same option. If the name exists as a file, it will be used instead of by name.If the appliction runs with a current working directory that is writable by other users (like `/tmp`), a malicious user can create a file name with the same name as the app wants to use by name, and thereby trick the application to use the file based cert instead of the one referred to by name making libcurl send the wrong client certificate in the TLS connection handshake.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade curl | Oct 1, 2024 | Aug 5, 2021 |
| Freebsd | — | Upgrade mariadb105-serverUpgrade mysql80-clientUpgrade mariadb103-serverUpgrade curlUpgrade mysql80-serverUpgrade mysql57-serverUpgrade mariadb104-serverUpgrade mysql-connector-java | Nov 4, 2022 | Oct 17, 2021 |
| Gentoo Linux | — | Upgrade net-misc/curl. | Dec 19, 2022 | Aug 5, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade curlUpgrade libcurl | Nov 12, 2021 | Aug 5, 2021 |
| Oracle Mysql | — | Upgrade to MySQL version 5.7.36Upgrade to MySQL version 8.0.27 | Jun 15, 2026 | Aug 5, 2021 |
| Oracle Solaris | — | Upgrade database/mysql-57/embedded to version 5.7.36-11.4.42.0.1.113.0 on Solaris 11.4Upgrade database/mysql-57/library to version 5.7.36-11.4.42.0.1.113.0 on Solaris 11.4Upgrade database/mysql-57 to version 5.7.36-11.4.42.0.1.113.0 on Solaris 11.4Upgrade database/mysql-57/client to version 5.7.36-11.4.42.0.1.113.0 on Solaris 11.4Upgrade database/mysql-57/tests to version 5.7.36-11.4.42.0.1.113.0 on Solaris 11.4 | Feb 17, 2022 | Aug 5, 2021 |
| Splunk | — | Upgrade Splunk Universal Forwarder to version 9.0.6Upgrade Splunk Enterprise to version 9.1.1Upgrade Splunk Enterprise to version 8.2.12Upgrade Splunk Enterprise to version 8.1.14Upgrade Splunk Enterprise to version 9.0.6Upgrade Splunk Enterprise to version 8.2.11Upgrade Splunk Universal Forwarder to version 8.1.14Upgrade Splunk Enterprise to version 9.0.5Upgrade Splunk Universal Forwarder to version 8.2.12Upgrade Splunk Universal Forwarder to version 9.0.5Upgrade Splunk Universal Forwarder to version 9.1.1Upgrade Splunk Universal Forwarder to version 8.2.11 | Sep 30, 2025 | Aug 5, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Aug 5, 2021 |
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