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 curl-minimalUpgrade libcurl-minimalUpgrade curlUpgrade libcurl-develUpgrade libcurl | Nov 16, 2023 | Mar 30, 2023 |
| Alpine Linux | — | Upgrade curl | Mar 26, 2024 | Mar 30, 2023 |
| Amazon Linux Ami 2 | — | Upgrade libcurl-develUpgrade curlUpgrade libcurlUpgrade curl-debuginfo | Jun 8, 2023 | Mar 30, 2023 |
| Amazon_linux_2023 | — | Upgrade curl-debugsourceUpgrade curlUpgrade libcurl-debuginfoUpgrade libcurl-develUpgrade libcurlUpgrade curl-minimalUpgrade curl-debuginfoUpgrade curl-minimal-debuginfoUpgrade libcurl-minimalUpgrade libcurl-minimal-debuginfo | Feb 17, 2025 | Mar 20, 2023 |
| Centos_linux | — | Upgrade curl-debuginfoUpgrade libcurl-develUpgrade curl-minimalUpgrade curl-debugsourceUpgrade curlUpgrade libcurl-minimal-debuginfoUpgrade libcurl-minimalUpgrade libcurlUpgrade libcurl-debuginfoUpgrade 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 libcurlUpgrade curl | May 9, 2023 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp11 | — | Upgrade libcurlUpgrade curl | Jan 10, 2024 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp8 | — | Upgrade libcurlUpgrade libcurl-develUpgrade curl | Jun 9, 2023 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp9 | — | Upgrade curlUpgrade libcurl | 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 libcurlUpgrade curl-minimalUpgrade libcurl-develUpgrade curlUpgrade libcurl-minimal | Jul 22, 2024 | Mar 20, 2023 |
| Redhat_linux | — | Upgrade curl-debugsourceUpgrade libcurl-minimalUpgrade curl-minimal-debuginfoUpgrade libcurl-minimal-debuginfoUpgrade curl-minimalUpgrade curlUpgrade curl-debuginfoUpgrade libcurl-debuginfoNo solution existsUpgrade libcurlUpgrade libcurl-devel | Nov 8, 2023 | Mar 30, 2023 |
| Splunk | — | Upgrade Splunk Universal Forwarder to version 8.1.14Upgrade Splunk Universal Forwarder to version 8.2.11Upgrade Splunk Universal Forwarder to version 9.0.5Upgrade Splunk Enterprise to version 8.2.11Upgrade Splunk Universal Forwarder to version 9.0.6Upgrade Splunk Enterprise to version 9.0.5Upgrade Splunk Universal Forwarder to version 8.2.12Upgrade Splunk Enterprise to version 9.1.1Upgrade Splunk Enterprise to version 9.0.6Upgrade Splunk Enterprise to version 8.1.14Upgrade Splunk Universal Forwarder to version 9.1.1Upgrade Splunk Enterprise to version 8.2.12 | Sep 30, 2025 | Mar 30, 2023 |
| Suse | — | Upgrade libcurl4-32bitUpgrade curlUpgrade libcurl-develUpgrade libcurl4Upgrade libcurl-devel-32bit | Mar 22, 2023 | Mar 21, 2023 |
| Ubuntu | — | Upgrade libcurl4Upgrade libcurl3-gnutlsUpgrade curlUpgrade libcurl3-nss | 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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