A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proxy. HTTP proxies can (and often do) deny such tunnel operations. When getting denied to tunnel the specific protocols SMB or TELNET, curl would use a heap-allocated struct after it had been freed, in its transfer shutdown code path.
CVSS Details
- CVSS 3.1 Base Score: 5.9
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-curlalma-upgrade-curl-minimalalma-upgrade-libcurlalma-upgrade-libcurl-develalma-upgrade-libcurl-minimal | May 15, 2023 | Feb 9, 2023 | |
| Alpine Linux | alpine-linux-upgrade-curl | Aug 22, 2024 | Feb 9, 2023 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-curlamazon-linux-ami-2-upgrade-curl-debuginfoamazon-linux-ami-2-upgrade-libcurlamazon-linux-ami-2-upgrade-libcurl-devel | Feb 7, 2023 | Feb 7, 2023 | |
| Amazon_linux | — | amazon-linux-upgrade-curl | Apr 21, 2023 | Dec 21, 2022 |
| Amazon_linux_2023 | amazon-linux-2023-upgrade-curlamazon-linux-2023-upgrade-curl-debuginfoamazon-linux-2023-upgrade-curl-debugsourceamazon-linux-2023-upgrade-curl-minimalamazon-linux-2023-upgrade-curl-minimal-debuginfoamazon-linux-2023-upgrade-libcurlamazon-linux-2023-upgrade-libcurl-debuginfoamazon-linux-2023-upgrade-libcurl-develamazon-linux-2023-upgrade-libcurl-minimalamazon-linux-2023-upgrade-libcurl-minimal-debuginfo | Feb 17, 2025 | Dec 21, 2022 | |
| Apple Osx Curl | apple-osx-upgrade-latest | Apr 12, 2023 | Feb 9, 2023 | |
| Centos_linux | — | centos-upgrade-curlcentos-upgrade-curl-debuginfocentos-upgrade-libcurlcentos-upgrade-libcurl-devel | May 15, 2023 | Feb 9, 2023 |
| Debian | debian-upgrade-curl | Jan 30, 2023 | Jan 30, 2023 | |
| Gentoo Linux | gentoo-linux-upgrade-net-misc-curl | Oct 12, 2023 | Feb 9, 2023 | |
| Huawei Euleros 2_0_sp10 | huawei-euleros-2_0_sp10-upgrade-curlhuawei-euleros-2_0_sp10-upgrade-libcurl | Mar 20, 2023 | Feb 9, 2023 | |
| Huawei Euleros 2_0_sp11 | huawei-euleros-2_0_sp11-upgrade-curlhuawei-euleros-2_0_sp11-upgrade-libcurl | Mar 24, 2023 | Feb 9, 2023 | |
| Huawei Euleros 2_0_sp5 | huawei-euleros-2_0_sp5-upgrade-curlhuawei-euleros-2_0_sp5-upgrade-libcurlhuawei-euleros-2_0_sp5-upgrade-libcurl-devel | Jun 9, 2023 | Feb 9, 2023 | |
| Huawei Euleros 2_0_sp8 | huawei-euleros-2_0_sp8-upgrade-curlhuawei-euleros-2_0_sp8-upgrade-libcurlhuawei-euleros-2_0_sp8-upgrade-libcurl-devel | Feb 9, 2023 | Feb 8, 2023 | |
| Huawei Euleros 2_0_sp9 | huawei-euleros-2_0_sp9-upgrade-curlhuawei-euleros-2_0_sp9-upgrade-libcurl | Mar 9, 2023 | Feb 9, 2023 | |
| Ibm Aix | ibm-aix-curl_advisory2 | Jul 27, 2023 | Feb 9, 2023 | |
| Microsoft Windows | microsoft-windows-windows_10-1809-kb5025229microsoft-windows-windows_10-20h2-kb5025221microsoft-windows-windows_10-21h2-kb5025221microsoft-windows-windows_10-22h2-kb5025221microsoft-windows-windows_11-21h2-kb5025224microsoft-windows-windows_11-22h2-kb5025239microsoft-windows-windows_server_2019-1809-kb5025229microsoft-windows-windows_server_2022-21h2-kb5025230microsoft-windows-windows_server_2022-22h2-kb5025230 | Apr 15, 2024 | Apr 15, 2024 | |
| Nutanix Ahv | nutanix-ahv-upgrade-latest | Jun 5, 2026 | Feb 20, 2024 | |
| Oracle_linux | — | oracle-linux-upgrade-curloracle-linux-upgrade-curl-minimaloracle-linux-upgrade-libcurloracle-linux-upgrade-libcurl-develoracle-linux-upgrade-libcurl-minimal | May 17, 2023 | Dec 21, 2022 |
| Redhat_linux | no-fix-redhat-rpm-packageredhat-upgrade-curlredhat-upgrade-curl-debuginforedhat-upgrade-curl-debugsourceredhat-upgrade-curl-minimalredhat-upgrade-curl-minimal-debuginforedhat-upgrade-libcurlredhat-upgrade-libcurl-debuginforedhat-upgrade-libcurl-develredhat-upgrade-libcurl-minimalredhat-upgrade-libcurl-minimal-debuginfo | May 15, 2023 | Feb 9, 2023 | |
| Splunk | splunk-upgrade-latest | Sep 30, 2025 | Feb 9, 2023 | |
| Suse | — | suse-upgrade-curlsuse-upgrade-libcurl-develsuse-upgrade-libcurl-devel-32bitsuse-upgrade-libcurl4suse-upgrade-libcurl4-32bit | Dec 22, 2022 | Dec 21, 2022 |
| Ubuntu | ubuntu-pro-upgrade-curlubuntu-pro-upgrade-libcurl3ubuntu-pro-upgrade-libcurl3-gnutlsubuntu-pro-upgrade-libcurl3-nssubuntu-upgrade-curlubuntu-upgrade-libcurl3-gnutlsubuntu-upgrade-libcurl3-nssubuntu-upgrade-libcurl4 | Jan 6, 2023 | Dec 21, 2022 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jan 20, 2025 | Feb 9, 2023 |
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