An allocation of resources without limits or throttling vulnerability exists in curl <v7.88.0 based on the "chained" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable "links" in this "decompression chain" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a "malloc bomb", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade libcurl-minimalUpgrade libcurlUpgrade curlUpgrade libcurl-develUpgrade curl-minimal | Mar 14, 2023 | Feb 23, 2023 |
| Alpine Linux | — | Upgrade curl | Aug 22, 2024 | Feb 23, 2023 |
| Amazon Linux Ami 2 | — | Upgrade libcurl-develUpgrade curlUpgrade curl-debuginfoUpgrade libcurl | Mar 7, 2023 | Feb 23, 2023 |
| Amazon_linux | — | Upgrade curl | Apr 21, 2023 | Feb 16, 2023 |
| Amazon_linux_2023 | — | Upgrade curl-debuginfoUpgrade libcurl-debuginfoUpgrade curl-minimal-debuginfoUpgrade libcurl-minimalUpgrade curl-debugsourceUpgrade curl-minimalUpgrade libcurlUpgrade libcurl-minimal-debuginfoUpgrade curlUpgrade libcurl-devel | Feb 17, 2025 | Feb 15, 2023 |
| Centos_linux | — | Upgrade libcurl-debuginfoUpgrade curl-minimalUpgrade libcurl-minimalUpgrade curlUpgrade libcurl-develUpgrade curl-debugsourceUpgrade curl-minimal-debuginfoUpgrade curl-debuginfoUpgrade libcurl-minimal-debuginfoUpgrade libcurl | Mar 9, 2023 | Feb 23, 2023 |
| Debian | — | Upgrade curl | Feb 27, 2023 | Feb 23, 2023 |
| Freebsd | — | Upgrade curl | Mar 6, 2023 | Mar 5, 2023 |
| Gentoo Linux | — | Upgrade net-misc/curl. | Oct 12, 2023 | Feb 23, 2023 |
| Huawei Euleros 2_0_sp11 | — | Upgrade curlUpgrade libcurl | Jul 5, 2023 | Feb 23, 2023 |
| Huawei Euleros 2_0_sp8 | — | Upgrade libcurl-develUpgrade curlUpgrade libcurl | Apr 13, 2023 | Feb 23, 2023 |
| Huawei Euleros 2_0_sp9 | — | Upgrade libcurlUpgrade curl | May 10, 2023 | Feb 23, 2023 |
| Ibm Aix | — | Apply the fix or workaround for curl_advisory2 | Jul 27, 2023 | Feb 23, 2023 |
| Nutanix Ahv | — | Upgrade Nutanix AHV to the latest version | Jun 5, 2026 | Sep 4, 2023 |
| Oracle_linux | — | Upgrade curlUpgrade libcurlUpgrade libcurl-develUpgrade curl-minimalUpgrade libcurl-minimal | Mar 8, 2023 | Feb 15, 2023 |
| Redhat_linux | — | Upgrade libcurlUpgrade curl-minimal-debuginfoNo solution existsUpgrade libcurl-debuginfoUpgrade curl-debuginfoUpgrade curl-minimalUpgrade libcurl-minimalUpgrade libcurl-minimal-debuginfoUpgrade curl-debugsourceUpgrade libcurl-develUpgrade curl | Mar 9, 2023 | Feb 23, 2023 |
| Rocky_linux | — | Upgrade libcurl-minimalUpgrade libcurl-minimal-debuginfoUpgrade curl-debuginfoUpgrade libcurl-debuginfoUpgrade curlUpgrade libcurl-develUpgrade libcurlUpgrade curl-debugsource | Mar 12, 2024 | Feb 23, 2023 |
| Splunk | — | Upgrade Splunk Enterprise to version 8.2.11Upgrade Splunk Universal Forwarder to version 8.2.11Upgrade Splunk Universal Forwarder to version 8.2.12Upgrade 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 Universal Forwarder to version 9.1.1Upgrade Splunk Enterprise to version 9.0.5Upgrade Splunk Enterprise to version 9.0.6Upgrade Splunk Enterprise to version 8.1.14Upgrade Splunk Enterprise to version 8.2.12Upgrade Splunk Enterprise to version 9.1.1 | Sep 30, 2025 | Feb 23, 2023 |
| Suse | — | Upgrade libcurl4-32bitUpgrade curlUpgrade libcurl4Upgrade libcurl-develUpgrade libcurl-devel-32bit | Feb 16, 2023 | Feb 15, 2023 |
| Ubuntu | — | Upgrade libcurl3-gnutlsUpgrade libcurl4Upgrade curlUpgrade libcurl3-nss | Mar 22, 2023 | Feb 23, 2023 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Feb 23, 2023 |
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