Buffer overflow in HAProxy 1.4 through 1.4.22 and 1.5-dev through 1.5-dev17, when HTTP keep-alive is enabled, using HTTP keywords in TCP inspection rules, and running with rewrite rules that appends to requests, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted pipelined HTTP requests that prevent request realignment from occurring.
2013-04-10T15:55:15.283
2025-04-11T00:51:21.963
Deferred
CVSSv2: 5.1 (MEDIUM)
AV:N/AC:H/Au:N/C:P/I:P/A:P
4.9
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | haproxy | haproxy | 1.4 | Yes |
| Application | haproxy | haproxy | 1.4.20 | Yes |
| Application | haproxy | haproxy | 1.4.22 | Yes |
| Application | haproxy | haproxy | 1.5 | Yes |
| Application | haproxy | haproxy | 1.5 | Yes |