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In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade haproxy | Jun 16, 2020 | Apr 2, 2020 |
| Amazon Linux Ami 2 | — | Upgrade haproxy2Upgrade haproxy2-debuginfo | Sep 28, 2023 | Apr 2, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Apr 2, 2020 |
| Centos_linux | — | Upgrade haproxyUpgrade haproxy-debugsourceUpgrade haproxy-debuginfo | Apr 3, 2020 | Apr 2, 2020 |
| Debian | — | Upgrade haproxy | Apr 6, 2020 | Apr 2, 2020 |
| Freebsd | — | Upgrade haproxyUpgrade haproxy19Upgrade haproxy21Upgrade haproxy18 | Apr 3, 2020 | Apr 2, 2020 |
| Gentoo Linux | — | Upgrade net-proxy/haproxy. | Dec 29, 2020 | Apr 2, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade haproxy | May 27, 2020 | Apr 2, 2020 |
| Oracle_linux | — | Upgrade haproxy | Oct 5, 2022 | Apr 2, 2020 |
| Redhat Openshift | — | Upgrade haproxy | Apr 8, 2020 | Apr 2, 2020 |
| Redhat_linux | — | Upgrade haproxy-debuginfoUpgrade haproxyUpgrade haproxy-debugsource | Apr 3, 2020 | Apr 2, 2020 |
| Suse | — | Upgrade haproxy | Apr 5, 2020 | Apr 2, 2020 |
| Ubuntu | — | Upgrade haproxy | Apr 8, 2020 | Apr 2, 2020 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 2, 2020 |
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