An authentication bypass vulnerability exists in libcurl prior to v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, which should have prevented reuse. libcurl maintains a pool of previously used connections to reuse them for subsequent transfers if the configurations match. However, two SSH settings were omitted from the configuration check, allowing them to match easily, potentially leading to the reuse of an inappropriate connection.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade curlUpgrade curl-minimalUpgrade libcurl-minimalUpgrade libcurl-develUpgrade libcurl | Nov 16, 2023 | Mar 30, 2023 |
| Alpine Linux | — | Upgrade curl | Mar 26, 2024 | Mar 30, 2023 |
| Amazon Linux Ami 2 | — | Upgrade libcurlUpgrade libcurl-develUpgrade curlUpgrade curl-debuginfo | Jun 8, 2023 | Mar 30, 2023 |
| Amazon_linux_2023 | — | Upgrade curl-minimal-debuginfoUpgrade libcurl-minimalUpgrade libcurl-minimal-debuginfoUpgrade curl-minimalUpgrade curlUpgrade libcurl-debuginfoUpgrade libcurl-develUpgrade curl-debugsourceUpgrade curl-debuginfoUpgrade libcurl | Feb 17, 2025 | Mar 20, 2023 |
| Centos_linux | — | Upgrade curlUpgrade libcurl-develUpgrade libcurl-minimal-debuginfoUpgrade curl-debuginfoUpgrade curl-minimalUpgrade curl-debugsourceUpgrade libcurlUpgrade libcurl-debuginfoUpgrade libcurl-minimalUpgrade curl-minimal-debuginfo | Nov 8, 2023 | Mar 30, 2023 |
| Debian | — | Upgrade curl | Apr 24, 2023 | Mar 30, 2023 |
| Freebsd | — | Upgrade curl | Mar 23, 2023 | Mar 20, 2023 |
| Gentoo Linux | — | Upgrade net-misc/curl. | Oct 12, 2023 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp10 | — | Upgrade curlUpgrade libcurl | May 9, 2023 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp11 | — | Upgrade curlUpgrade libcurl | Jan 10, 2024 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp8 | — | Upgrade curlUpgrade libcurl-develUpgrade libcurl | Jun 9, 2023 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp9 | — | Upgrade libcurlUpgrade curl | Jul 10, 2023 | Mar 30, 2023 |
| Ibm Aix | — | Apply the fix or workaround for curl_advisory2 | Jul 27, 2023 | Mar 30, 2023 |
| Oracle_linux | — | Upgrade curl-minimalUpgrade libcurlUpgrade libcurl-develUpgrade libcurl-minimalUpgrade curl | Jul 22, 2024 | Mar 20, 2023 |
| Redhat_linux | — | Upgrade curl-debugsourceUpgrade libcurl-minimal-debuginfoUpgrade curl-minimal-debuginfoUpgrade libcurl-minimalUpgrade libcurl-debuginfoUpgrade curlNo solution existsUpgrade libcurl-develUpgrade libcurlUpgrade curl-minimalUpgrade curl-debuginfo | Nov 8, 2023 | Mar 30, 2023 |
| Splunk | — | Upgrade Splunk Universal Forwarder to version 8.2.12Upgrade Splunk Enterprise to version 8.1.14Upgrade Splunk Universal Forwarder to version 9.1.1Upgrade Splunk Enterprise to version 9.1.1Upgrade Splunk Enterprise to version 9.0.6Upgrade Splunk Enterprise to version 8.2.12Upgrade Splunk Universal Forwarder to version 8.2.11Upgrade Splunk Universal Forwarder to version 8.1.14Upgrade Splunk Universal Forwarder to version 9.0.6Upgrade Splunk Universal Forwarder to version 9.0.5Upgrade Splunk Enterprise to version 8.2.11Upgrade Splunk Enterprise to version 9.0.5 | Sep 30, 2025 | Mar 30, 2023 |
| Suse | — | Upgrade libcurl4Upgrade libcurl-devel-32bitUpgrade libcurl4-32bitUpgrade libcurl-develUpgrade curl | Mar 22, 2023 | Mar 21, 2023 |
| Ubuntu | — | Upgrade libcurl3-nssUpgrade libcurl3-gnutlsUpgrade curlUpgrade libcurl4 | Mar 22, 2023 | Mar 20, 2023 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Mar 30, 2023 |
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