HAProxy 1.4 before 1.4.24 and 1.5 before 1.5-dev19, when configured to use hdr_ip or other "hdr_*" functions with a negative occurrence count, allows remote attackers to cause a denial of service (negative array index usage and crash) via an HTTP header with a certain number of values, related to the MAX_HDR_HISTORY variable.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade haproxy | Dec 1, 2016 | Aug 19, 2013 |
| Debian | — | Upgrade haproxy | Jul 30, 2024 | Aug 19, 2013 |
| Gentoo Linux | — | Upgrade net-proxy/haproxy. | Oct 30, 2017 | Aug 19, 2013 |
| Redhat Openshift | — | Upgrade haproxy | Oct 8, 2019 | Aug 19, 2013 |
| Ubuntu | — | Upgrade haproxy | Nov 8, 2024 | Aug 19, 2013 |
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